diff --git a/Makefile b/Makefile
index 9a4524e..33768ce 100644
--- a/Makefile
+++ b/Makefile
@@ -195,7 +195,7 @@ clean:
 	$(MAKE) clean -C c++/carla-bridge
 	$(MAKE) clean -C c++/carla-discovery
 	$(MAKE) clean -C c++/carla-lilv
-	rm -f *~ src/*~ src/*.pyc src/*.dll src/*.so src/ui_*.py src/icons_rc.py
+	rm -f *~ src/*~ src/*.pyc src/ui_*.py src/icons_rc.py
 
 
 install:
diff --git a/c++/carla-backend/carla_backend.h b/c++/carla-backend/carla_backend.h
index 2f170ae..364b195 100644
--- a/c++/carla-backend/carla_backend.h
+++ b/c++/carla-backend/carla_backend.h
@@ -397,15 +397,17 @@ enum CallbackType {
     /*!
      * A note has been pressed.
      *
-     * \param value1 The note
-     * \param value2 Velocity of the note
+     * \param value1 Channel
+     * \param value2 Note
+     * \param value3 Velocity
      */
     CALLBACK_NOTE_ON = 4,
 
     /*!
      * A note has been released.
      *
-     * \param value1 The note
+     * \param value1 Channel
+     * \param value2 Note
      */
     CALLBACK_NOTE_OFF = 5,
 
diff --git a/c++/carla-backend/carla_backend_standalone.cpp b/c++/carla-backend/carla_backend_standalone.cpp
index c1d898e..6710fc4 100644
--- a/c++/carla-backend/carla_backend_standalone.cpp
+++ b/c++/carla-backend/carla_backend_standalone.cpp
@@ -19,8 +19,8 @@
 #include "carla_plugin.h"
 
 // Single, standalone engine
-static CarlaBackend::CarlaEngine* carla_engine = nullptr;
-static CarlaBackend::CallbackFunc carla_func = nullptr;
+static CarlaBackend::CarlaEngine* carlaEngine = nullptr;
+static CarlaBackend::CallbackFunc carlaFunc = nullptr;
 
 // -------------------------------------------------------------------------------------------------------------------
 
@@ -94,45 +94,47 @@ bool engine_init(const char* driver_name, const char* client_name)
 
 #ifdef CARLA_ENGINE_JACK
     if (strcmp(driver_name, "JACK") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineJack;
+        carlaEngine = new CarlaBackend::CarlaEngineJack;
+#else
+    if (false)
+        pass();
 #endif
 
 #ifdef CARLA_ENGINE_RTAUDIO
 #ifdef __LINUX_ALSA__
-    if (strcmp(driver_name, "ALSA") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_ALSA);
+    else if (strcmp(driver_name, "ALSA") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_ALSA);
 #endif
 #ifdef __LINUX_PULSE__
-    if (strcmp(driver_name, "PulseAudio") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_PULSE);
+    else if (strcmp(driver_name, "PulseAudio") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_PULSE);
 #endif
 #ifdef __LINUX_OSS__
-    if (strcmp(driver_name, "OSS") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_OSS);
+    else if (strcmp(driver_name, "OSS") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::LINUX_OSS);
 #endif
 #ifdef __UNIX_JACK__
-    if (strcmp(driver_name, "JACK (RtAudio)") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::UNIX_JACK);
+    else if (strcmp(driver_name, "JACK (RtAudio)") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::UNIX_JACK);
 #endif
 #ifdef __MACOSX_CORE__
-    if (strcmp(driver_name, "CoreAudio") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::MACOSX_CORE);
+    else if (strcmp(driver_name, "CoreAudio") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::MACOSX_CORE);
 #endif
 #ifdef __WINDOWS_ASIO__
-    if (strcmp(driver_name, "ASIO") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::WINDOWS_ASIO);
+    else if (strcmp(driver_name, "ASIO") == 0)
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::WINDOWS_ASIO);
 #endif
 #ifdef __WINDOWS_DS__
     else if (strcmp(driver_name, "DirectSound") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::WINDOWS_DS);
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::WINDOWS_DS);
 #endif
 #ifdef __RTAUDIO_DUMMY__
     else if (strcmp(driver_name, "Dummy") == 0)
-        carla_engine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::RTAUDIO_DUMMY);
+        carlaEngine = new CarlaBackend::CarlaEngineRtAudio(RtAudio::RTAUDIO_DUMMY);
 #endif
 #endif
-
-    if (! carla_engine)
+    else
     {
         CarlaBackend::setLastError("The seleted audio driver is not available!");
         return false;
@@ -147,9 +149,9 @@ bool engine_init(const char* driver_name, const char* client_name)
     }
 #endif
 
-    carla_engine->setCallback(carla_func);
+    carlaEngine->setCallback(carlaFunc);
 
-    bool started = carla_engine->init(client_name);
+    bool started = carlaEngine->init(client_name);
 
     if (started)
         CarlaBackend::setLastError("no error");
@@ -161,14 +163,14 @@ bool engine_close()
 {
     qDebug("CarlaBackendStandalone::engine_close()");
 
-    if (! carla_engine)
+    if (! carlaEngine)
     {
         CarlaBackend::setLastError("Engine is not started");
         return false;
     }
 
-    bool closed = carla_engine->close();
-    carla_engine->removeAllPlugins();
+    bool closed = carlaEngine->close();
+    carlaEngine->removeAllPlugins();
 
     // cleanup static data
     get_plugin_info(0);
@@ -183,8 +185,8 @@ bool engine_close()
     CarlaBackend::resetOptions();
     CarlaBackend::setLastError(nullptr);
 
-    delete carla_engine;
-    carla_engine = nullptr;
+    delete carlaEngine;
+    carlaEngine = nullptr;
 
     return closed;
 }
@@ -193,7 +195,7 @@ bool is_engine_running()
 {
     qDebug("CarlaBackendStandalone::is_engine_running()");
 
-    return carla_engine && carla_engine->isRunning();
+    return carlaEngine && carlaEngine->isRunning();
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -202,14 +204,14 @@ short add_plugin(CarlaBackend::BinaryType btype, CarlaBackend::PluginType ptype,
 {
     qDebug("CarlaBackendStandalone::add_plugin(%s, %s, \"%s\", \"%s\", \"%s\", %p)", CarlaBackend::BinaryType2str(btype), CarlaBackend::PluginType2str(ptype), filename, name, label, extra_stuff);
 
-    return carla_engine->addPlugin(btype, ptype, filename, name, label, extra_stuff);
+    return carlaEngine->addPlugin(btype, ptype, filename, name, label, extra_stuff);
 }
 
 bool remove_plugin(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::remove_plugin(%i)", plugin_id);
 
-    return carla_engine->removePlugin(plugin_id);
+    return carlaEngine->removePlugin(plugin_id);
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -238,7 +240,7 @@ const PluginInfo* get_plugin_info(unsigned short plugin_id)
         info.copyright = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -263,7 +265,7 @@ const PluginInfo* get_plugin_info(unsigned short plugin_id)
         return &info;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_plugin_info(%i) - could not find plugin", plugin_id);
 
     return &info;
@@ -275,7 +277,7 @@ const PortCountInfo* get_audio_port_count_info(unsigned short plugin_id)
 
     static PortCountInfo info;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -295,7 +297,7 @@ const PortCountInfo* get_midi_port_count_info(unsigned short plugin_id)
 
     static PortCountInfo info;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -315,7 +317,7 @@ const PortCountInfo* get_parameter_count_info(unsigned short plugin_id)
 
     static PortCountInfo info;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -351,7 +353,7 @@ const ParameterInfo* get_parameter_info(unsigned short plugin_id, quint32 parame
         info.unit = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -376,7 +378,7 @@ const ParameterInfo* get_parameter_info(unsigned short plugin_id, quint32 parame
         return &info;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_parameter_info(%i, %i) - could not find plugin", plugin_id, parameter_id);
 
     return &info;
@@ -394,7 +396,7 @@ const ScalePointInfo* get_parameter_scalepoint_info(unsigned short plugin_id, qu
         info.label = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -418,7 +420,7 @@ const ScalePointInfo* get_parameter_scalepoint_info(unsigned short plugin_id, qu
         return &info;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_parameter_scalepoint_info(%i, %i, %i) - could not find plugin", plugin_id, parameter_id, scalepoint_id);
 
     return &info;
@@ -430,7 +432,7 @@ const GuiInfo* get_gui_info(unsigned short plugin_id)
 
     static GuiInfo info;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -450,7 +452,7 @@ const CarlaBackend::ParameterData* get_parameter_data(unsigned short plugin_id,
 
     static CarlaBackend::ParameterData data;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -471,7 +473,7 @@ const CarlaBackend::ParameterRanges* get_parameter_ranges(unsigned short plugin_
 
     static CarlaBackend::ParameterRanges ranges;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -492,7 +494,7 @@ const CarlaBackend::midi_program_t* get_midi_program_data(unsigned short plugin_
 
     static CarlaBackend::midi_program_t data;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -513,7 +515,7 @@ const CarlaBackend::CustomData* get_custom_data(unsigned short plugin_id, quint3
 
     static CarlaBackend::CustomData data;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -540,7 +542,7 @@ const char* get_chunk_data(unsigned short plugin_id)
         chunk_data = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -563,7 +565,7 @@ const char* get_chunk_data(unsigned short plugin_id)
         return chunk_data;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_chunk_data(%i) - could not find plugin", plugin_id);
 
     return nullptr;
@@ -575,7 +577,7 @@ uint32_t get_parameter_count(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_parameter_count(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->parameterCount();
@@ -588,7 +590,7 @@ uint32_t get_program_count(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_program_count(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->programCount();
@@ -601,7 +603,7 @@ uint32_t get_midi_program_count(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_midi_program_count(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->midiProgramCount();
@@ -614,7 +616,7 @@ uint32_t get_custom_data_count(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_custom_data_count(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->customDataCount();
@@ -632,7 +634,7 @@ const char* get_parameter_text(unsigned short plugin_id, quint32 parameter_id)
     static char buf_text[STR_MAX] = { 0 };
     memset(buf_text, 0, sizeof(char)*STR_MAX);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -646,7 +648,7 @@ const char* get_parameter_text(unsigned short plugin_id, quint32 parameter_id)
         return nullptr;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_parameter_text(%i, %i) - could not find plugin", plugin_id, parameter_id);
 
     return nullptr;
@@ -664,7 +666,7 @@ const char* get_program_name(unsigned short plugin_id, quint32 program_id)
         program_name = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -682,7 +684,7 @@ const char* get_program_name(unsigned short plugin_id, quint32 program_id)
         return nullptr;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_program_name(%i, %i) - could not find plugin", plugin_id, program_id);
 
     return nullptr;
@@ -699,7 +701,7 @@ const char* get_midi_program_name(unsigned short plugin_id, quint32 midi_program
 
     midi_program_name = nullptr;
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -717,7 +719,7 @@ const char* get_midi_program_name(unsigned short plugin_id, quint32 midi_program
         return nullptr;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_midi_program_name(%i, %i) - could not find plugin", plugin_id, midi_program_id);
 
     return nullptr;
@@ -735,7 +737,7 @@ const char* get_real_plugin_name(unsigned short plugin_id)
         real_plugin_name = nullptr;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -747,7 +749,7 @@ const char* get_real_plugin_name(unsigned short plugin_id)
         return real_plugin_name;
     }
 
-    if (carla_engine->isRunning())
+    if (carlaEngine->isRunning())
         qCritical("CarlaBackendStandalone::get_real_plugin_name(%i) - could not find plugin", plugin_id);
 
     return real_plugin_name;
@@ -759,7 +761,7 @@ qint32 get_current_program_index(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_current_program_index(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->currentProgram();
@@ -772,7 +774,7 @@ qint32 get_current_midi_program_index(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::get_current_midi_program_index(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->currentMidiProgram();
@@ -787,7 +789,7 @@ double get_default_parameter_value(unsigned short plugin_id, quint32 parameter_i
 {
     qDebug("CarlaBackendStandalone::get_default_parameter_value(%i, %i)", plugin_id, parameter_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -806,7 +808,7 @@ double get_current_parameter_value(unsigned short plugin_id, quint32 parameter_i
 {
     qDebug("CarlaBackendStandalone::get_current_parameter_value(%i, %i)", plugin_id, parameter_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -826,7 +828,7 @@ double get_current_parameter_value(unsigned short plugin_id, quint32 parameter_i
 double get_input_peak_value(unsigned short plugin_id, unsigned short port_id)
 {
     if (plugin_id < CarlaBackend::MAX_PLUGINS && (port_id == 1 || port_id == 2))
-        return carla_engine->getInputPeak(plugin_id, port_id-1);
+        return carlaEngine->getInputPeak(plugin_id, port_id-1);
 
     qCritical("CarlaBackendStandalone::get_input_peak_value(%i, %i) - invalid plugin or port value", plugin_id, port_id);
     return 0.0;
@@ -835,7 +837,7 @@ double get_input_peak_value(unsigned short plugin_id, unsigned short port_id)
 double get_output_peak_value(unsigned short plugin_id, unsigned short port_id)
 {
     if (plugin_id < CarlaBackend::MAX_PLUGINS && (port_id == 1 || port_id == 2))
-        return carla_engine->getOutputPeak(plugin_id, port_id-1);
+        return carlaEngine->getOutputPeak(plugin_id, port_id-1);
 
     qCritical("CarlaBackendStandalone::get_output_peak_value(%i, %i) - invalid plugin or port value", plugin_id, port_id);
     return 0.0;
@@ -847,7 +849,7 @@ void set_active(unsigned short plugin_id, bool onoff)
 {
     qDebug("CarlaBackendStandalone::set_active(%i, %s)", plugin_id, bool2str(onoff));
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setActive(onoff, true, false);
@@ -859,7 +861,7 @@ void set_drywet(unsigned short plugin_id, double value)
 {
     qDebug("CarlaBackendStandalone::set_drywet(%i, %g)", plugin_id, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setDryWet(value, true, false);
@@ -871,7 +873,7 @@ void set_volume(unsigned short plugin_id, double value)
 {
     qDebug("CarlaBackendStandalone::set_volume(%i, %g)", plugin_id, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setVolume(value, true, false);
@@ -883,7 +885,7 @@ void set_balance_left(unsigned short plugin_id, double value)
 {
     qDebug("CarlaBackendStandalone::set_balance_left(%i, %g)", plugin_id, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setBalanceLeft(value, true, false);
@@ -895,7 +897,7 @@ void set_balance_right(unsigned short plugin_id, double value)
 {
     qDebug("CarlaBackendStandalone::set_balance_right(%i, %g)", plugin_id, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setBalanceRight(value, true, false);
@@ -909,7 +911,7 @@ void set_parameter_value(unsigned short plugin_id, quint32 parameter_id, double
 {
     qDebug("CarlaBackendStandalone::set_parameter_value(%i, %i, %g)", plugin_id, parameter_id, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -933,7 +935,7 @@ void set_parameter_midi_channel(unsigned short plugin_id, quint32 parameter_id,
         return;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -961,7 +963,7 @@ void set_parameter_midi_cc(unsigned short plugin_id, quint32 parameter_id, int16
         return;
     }
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -979,7 +981,7 @@ void set_program(unsigned short plugin_id, quint32 program_id)
 {
     qDebug("CarlaBackendStandalone::set_program(%i, %i)", plugin_id, program_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -997,7 +999,7 @@ void set_midi_program(unsigned short plugin_id, quint32 midi_program_id)
 {
     qDebug("CarlaBackendStandalone::set_midi_program(%i, %i)", plugin_id, midi_program_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -1017,7 +1019,7 @@ void set_custom_data(unsigned short plugin_id, CarlaBackend::CustomDataType type
 {
     qDebug("CarlaBackendStandalone::set_custom_data(%i, %i, \"%s\", \"%s\")", plugin_id, type, key, value);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->setCustomData(type, key, value, true);
@@ -1029,7 +1031,7 @@ void set_chunk_data(unsigned short plugin_id, const char* chunk_data)
 {
     qDebug("CarlaBackendStandalone::set_chunk_data(%i, \"%s\")", plugin_id, chunk_data);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -1047,7 +1049,7 @@ void set_gui_data(unsigned short plugin_id, int data, quintptr gui_addr)
 {
     qDebug("CarlaBackendStandalone::set_gui_data(%i, %i, " P_UINTPTR ")", plugin_id, data, gui_addr);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
     {
@@ -1068,7 +1070,7 @@ void show_gui(unsigned short plugin_id, bool yesno)
 {
     qDebug("CarlaBackendStandalone::show_gui(%i, %s)", plugin_id, bool2str(yesno));
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->showGui(yesno);
@@ -1078,7 +1080,7 @@ void show_gui(unsigned short plugin_id, bool yesno)
 
 void idle_guis()
 {
-    carla_engine->idlePluginGuis();
+    carlaEngine->idlePluginGuis();
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -1087,7 +1089,7 @@ void send_midi_note(unsigned short plugin_id, quint8 channel, quint8 note, quint
 {
     qDebug("CarlaBackendStandalone::send_midi_note(%i, %i, %i, %i)", plugin_id, channel, note, velocity);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->sendMidiSingleNote(channel, note, velocity, true, true, false);
@@ -1099,7 +1101,7 @@ void prepare_for_save(unsigned short plugin_id)
 {
     qDebug("CarlaBackendStandalone::prepare_for_save(%i)", plugin_id);
 
-    CarlaBackend::CarlaPlugin* const plugin = carla_engine->getPlugin(plugin_id);
+    CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
     if (plugin)
         return plugin->prepareForSave();
@@ -1113,14 +1115,14 @@ quint32 get_buffer_size()
 {
     qDebug("CarlaBackendStandalone::get_buffer_size()");
 
-    return carla_engine->getBufferSize();
+    return carlaEngine->getBufferSize();
 }
 
 double get_sample_rate()
 {
     qDebug("CarlaBackendStandalone::get_sample_rate()");
 
-    return carla_engine->getSampleRate();
+    return carlaEngine->getSampleRate();
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -1134,7 +1136,7 @@ const char* get_host_osc_url()
 {
     qDebug("CarlaBackendStandalone::get_host_osc_url()");
 
-    return carla_engine->getOscServerPath();
+    return carlaEngine->getOscServerPath();
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -1143,10 +1145,10 @@ void set_callback_function(CarlaBackend::CallbackFunc func)
 {
     qDebug("CarlaBackendStandalone::set_callback_function(%p)", func);
 
-    carla_func = func;
+    carlaFunc = func;
 
-    if (carla_engine)
-        carla_engine->setCallback(func);
+    if (carlaEngine)
+        carlaEngine->setCallback(func);
 }
 
 void set_option(CarlaBackend::OptionsType option, int value, const char* valueStr)
diff --git a/c++/carla-backend/carla_engine.cpp b/c++/carla-backend/carla_engine.cpp
index f935fba..7f714a4 100644
--- a/c++/carla-backend/carla_engine.cpp
+++ b/c++/carla-backend/carla_engine.cpp
@@ -1094,9 +1094,9 @@ void CarlaEngine::osc_send_set_midi_program_data(int plugin_id, int midi_program
     }
 }
 
-void CarlaEngine::osc_send_note_on(int plugin_id, int note, int velo)
+void CarlaEngine::osc_send_note_on(int plugin_id, int channel, int note, int velo)
 {
-    qDebug("CarlaEngine::osc_send_note_on(%i, %i, %i)", plugin_id, note, velo);
+    qDebug("CarlaEngine::osc_send_note_on(%i, %i, %i, %i)", plugin_id, channel, note, velo);
     const CarlaOscData* const oscData = m_osc.getControllerData();
 
     if (oscData->target)
@@ -1104,13 +1104,13 @@ void CarlaEngine::osc_send_note_on(int plugin_id, int note, int velo)
         char target_path[strlen(oscData->path)+9];
         strcpy(target_path, oscData->path);
         strcat(target_path, "/note_on");
-        lo_send(oscData->target, target_path, "iii", plugin_id, note, velo);
+        lo_send(oscData->target, target_path, "iiii", plugin_id, channel, note, velo);
     }
 }
 
-void CarlaEngine::osc_send_note_off(int plugin_id, int note)
+void CarlaEngine::osc_send_note_off(int plugin_id, int channel, int note)
 {
-    qDebug("CarlaEngine::osc_send_note_off(%i, %i)", plugin_id, note);
+    qDebug("CarlaEngine::osc_send_note_off(%i, %i, %i)", plugin_id, channel, note);
     const CarlaOscData* const oscData = m_osc.getControllerData();
 
     if (oscData->target)
@@ -1118,7 +1118,7 @@ void CarlaEngine::osc_send_note_off(int plugin_id, int note)
         char target_path[strlen(oscData->path)+10];
         strcpy(target_path, oscData->path);
         strcat(target_path, "/note_off");
-        lo_send(oscData->target, target_path, "ii", plugin_id, note);
+        lo_send(oscData->target, target_path, "iii", plugin_id, channel, note);
     }
 }
 
diff --git a/c++/carla-backend/carla_engine.h b/c++/carla-backend/carla_engine.h
index 94ce40e..9f01581 100644
--- a/c++/carla-backend/carla_engine.h
+++ b/c++/carla-backend/carla_engine.h
@@ -140,8 +140,6 @@ struct CarlaEnginePortNativeHandle {
 class CarlaEngineClient;
 class CarlaEngineBasePort;
 
-Q_COMPILER_INITIALIZER_LISTS
-
 /*!
  * \class CarlaEngine
  *
@@ -333,8 +331,8 @@ public:
     void osc_send_set_midi_program_data(int plugin_id, int midi_program_id, int bank_id, int program_id, const char* midi_program_name);
     void osc_send_set_input_peak_value(int plugin_id, int port_id, double value);
     void osc_send_set_output_peak_value(int plugin_id, int port_id, double value);
-    void osc_send_note_on(int plugin_id, int note, int velo);
-    void osc_send_note_off(int plugin_id, int note);
+    void osc_send_note_on(int plugin_id, int channel, int note, int velo);
+    void osc_send_note_off(int plugin_id, int channel, int note);
     void osc_send_exit();
 
 #ifndef BUILD_BRIDGE
diff --git a/c++/carla-backend/carla_plugin.h b/c++/carla-backend/carla_plugin.h
index ae77808..26b2393 100644
--- a/c++/carla-backend/carla_plugin.h
+++ b/c++/carla-backend/carla_plugin.h
@@ -93,11 +93,11 @@ enum PluginBridgeInfoType {
 enum PluginPostEventType {
     PluginPostEventNull,
     PluginPostEventDebug,
-    PluginPostEventParameterChange,
-    PluginPostEventProgramChange,
-    PluginPostEventMidiProgramChange,
-    PluginPostEventNoteOn,
-    PluginPostEventNoteOff
+    PluginPostEventParameterChange,   // param, N, value
+    PluginPostEventProgramChange,     // index
+    PluginPostEventMidiProgramChange, // index
+    PluginPostEventNoteOn,            // channel, note, velo
+    PluginPostEventNoteOff            // channel, note
 };
 
 struct PluginAudioData {
@@ -159,13 +159,15 @@ struct PluginMidiProgramData {
 
 struct PluginPostEvent {
     PluginPostEventType type;
-    int32_t index;
-    double value;
+    int32_t value1;
+    int32_t value2;
+    double  value3;
 
     PluginPostEvent()
         : type(PluginPostEventNull),
-          index(-1),
-          value(0.0) {}
+          value1(-1),
+          value2(-1),
+          value3(0.0) {}
 };
 
 struct ExternalMidiNote {
@@ -1582,18 +1584,17 @@ public:
         if (sendOsc)
         {
             if (velo)
-                x_engine->osc_send_note_on(m_id, note, velo);
+                x_engine->osc_send_note_on(m_id, channel, note, velo);
             else
-                x_engine->osc_send_note_off(m_id, note);
+                x_engine->osc_send_note_off(m_id, channel, note);
 
             if (m_hints & PLUGIN_IS_BRIDGE)
             {
-                uint8_t mdata[4] = { 0 };
-                mdata[1] = velo ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF;
-                mdata[2] = note;
-                mdata[3] = velo;
-
-                osc_send_midi(&osc.data, mdata);
+                uint8_t midiData[4] = { 0 };
+                midiData[1] = (velo ? MIDI_STATUS_NOTE_ON : MIDI_STATUS_NOTE_OFF) + channel;
+                midiData[2] = note;
+                midiData[3] = velo;
+                osc_send_midi(&osc.data, midiData);
             }
         }
 #else
@@ -1639,8 +1640,9 @@ public:
             extMidiNotes[i].velo = 0;
 
             postEvents.data[i + postPad].type  = PluginPostEventNoteOff;
-            postEvents.data[i + postPad].index = i;
-            postEvents.data[i + postPad].value = 0.0;
+            postEvents.data[i + postPad].value1 = i;
+            postEvents.data[i + postPad].value2 = 0;
+            postEvents.data[i + postPad].value3 = 0.0;
         }
 
         postEvents.mutex.unlock();
@@ -1654,16 +1656,17 @@ public:
      * Post pone an event of type \a type.\n
      * The event will be processed later in a high-priority thread (but not the main one).
      */
-    void postponeEvent(PluginPostEventType type, int32_t index, double value)
+    void postponeEvent(PluginPostEventType type, int32_t value1, int32_t value2, double value3)
     {
         postEvents.mutex.lock();
         for (unsigned short i=0; i < MAX_POST_EVENTS; i++)
         {
             if (postEvents.data[i].type == PluginPostEventNull)
             {
-                postEvents.data[i].type  = type;
-                postEvents.data[i].index = index;
-                postEvents.data[i].value = value;
+                postEvents.data[i].type   = type;
+                postEvents.data[i].value1 = value1;
+                postEvents.data[i].value2 = value2;
+                postEvents.data[i].value3 = value3;
                 break;
             }
         }
@@ -1695,94 +1698,92 @@ public:
                 return;
 
             case PluginPostEventDebug:
-                x_engine->callback(CALLBACK_DEBUG, m_id, event->index, 0, event->value);
+                x_engine->callback(CALLBACK_DEBUG, m_id, event->value1, event->value2, event->value3);
                 break;
 
             case PluginPostEventParameterChange:
                 // Update OSC based UIs
                 m_needsParamUpdate = true;
-                osc_send_control(&osc.data, event->index, event->value);
+                osc_send_control(&osc.data, event->value1, event->value3);
 
                 // Update OSC control client
-                x_engine->osc_send_set_parameter_value(m_id, event->index, event->value);
+                x_engine->osc_send_set_parameter_value(m_id, event->value1, event->value3);
 
                 // Update Host
-                x_engine->callback(CALLBACK_PARAMETER_CHANGED, m_id, event->index, 0, event->value);
+                x_engine->callback(CALLBACK_PARAMETER_CHANGED, m_id, event->value1, 0, event->value3);
                 break;
 
             case PluginPostEventProgramChange:
                 // Update OSC based UIs
                 m_needsProgUpdate = true;
-                osc_send_program(&osc.data, event->index);
+                osc_send_program(&osc.data, event->value1);
 
                 // Update OSC control client
-                x_engine->osc_send_set_program(m_id, event->index);
+                x_engine->osc_send_set_program(m_id, event->value1);
 
                 for (uint32_t j=0; j < param.count; j++)
                     x_engine->osc_send_set_default_value(m_id, j, param.ranges[j].def);
 
                 // Update Host
-                x_engine->callback(CALLBACK_PROGRAM_CHANGED, m_id, event->index, 0, 0.0);
+                x_engine->callback(CALLBACK_PROGRAM_CHANGED, m_id, event->value1, 0, 0.0);
                 break;
 
             case PluginPostEventMidiProgramChange:
-                //if (event->index < (int32_t)midiprog.count)
-                //{
-                //if (event->index >= 0)
-                //{
-                //const midi_program_t* const midiprog = plugin->midiProgramData(postEvents[j].index);
-                // Update OSC based UIs
-                //osc_send_midi_program(osc_data, midiprog->bank, midiprog->program, (plugin->type() == PLUGIN_DSSI));
-                //}
-
                 // Update OSC based UIs
                 m_needsProgUpdate = true;
-                osc_send_midi_program(&osc.data, event->index);
+
+                if (m_type == PLUGIN_DSSI)
+                {
+                    if (event->value1 >= 0 && event->value1 < (int32_t)midiprog.count)
+                        osc_send_program(&osc.data, midiprog.data[event->value1].bank, midiprog.data[event->value1].program);
+                }
+                else
+                    osc_send_midi_program(&osc.data, event->value1);
 
                 // Update OSC control client
-                x_engine->osc_send_set_midi_program(m_id, event->index);
+                x_engine->osc_send_set_midi_program(m_id, event->value1);
 
                 for (uint32_t j=0; j < param.count; j++)
                     x_engine->osc_send_set_default_value(m_id, j, param.ranges[j].def);
 
                 // Update Host
-                x_engine->callback(CALLBACK_MIDI_PROGRAM_CHANGED, m_id, event->index, 0, 0.0);
+                x_engine->callback(CALLBACK_MIDI_PROGRAM_CHANGED, m_id, event->value1, 0, 0.0);
                 //}
                 break;
 
             case PluginPostEventNoteOn:
                 // Update OSC based UIs
-                if (cin_channel >= 0 && cin_channel < 16)
+                if (true)
                 {
-                    uint8_t mdata[4] = { 0 };
-                    mdata[1] = MIDI_STATUS_NOTE_ON + cin_channel;
-                    mdata[2] = event->index;
-                    mdata[3] = rint(event->value);
-                    osc_send_midi(&osc.data, mdata);
+                    uint8_t midiData[4] = { 0 };
+                    midiData[1] = MIDI_STATUS_NOTE_ON + event->value1;
+                    midiData[2] = event->value2;
+                    midiData[3] = rint(event->value3);
+                    osc_send_midi(&osc.data, midiData);
                 }
 
                 // Update OSC control client
-                x_engine->osc_send_note_on(m_id, event->index, event->value);
+                x_engine->osc_send_note_on(m_id, event->value1, event->value2, event->value3);
 
                 // Update Host
-                x_engine->callback(CALLBACK_NOTE_ON, m_id, event->index, rint(event->value), 0.0);
+                x_engine->callback(CALLBACK_NOTE_ON, m_id, event->value1, event->value2, event->value3);
                 break;
 
             case PluginPostEventNoteOff:
                 // Update OSC based UIs
-                if (cin_channel >= 0 && cin_channel < 16)
+                if (true)
                 {
-                    uint8_t mdata[4] = { 0 };
-                    mdata[1] = MIDI_STATUS_NOTE_OFF + cin_channel;
-                    mdata[2] = event->index;
-                    osc_send_midi(&osc.data, mdata);
+                    uint8_t midiData[4] = { 0 };
+                    midiData[1] = MIDI_STATUS_NOTE_OFF + event->value1;
+                    midiData[2] = event->value2;
+                    osc_send_midi(&osc.data, midiData);
                 }
 
                 // Update OSC control client
-                x_engine->osc_send_note_off(m_id, event->index);
+                x_engine->osc_send_note_off(m_id, event->value1, event->value2);
 
                 // Update Host
-                x_engine->callback(CALLBACK_NOTE_OFF, m_id, event->index, 0, 0.0);
+                x_engine->callback(CALLBACK_NOTE_OFF, m_id, event->value1, event->value2, 0.0);
                 break;
             }
         }
diff --git a/c++/carla-backend/dssi.cpp b/c++/carla-backend/dssi.cpp
index 71a4e7c..89d585e 100644
--- a/c++/carla-backend/dssi.cpp
+++ b/c++/carla-backend/dssi.cpp
@@ -866,7 +866,7 @@ public:
                         {
                             value = cinEvent->value;
                             setDryWet(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, 0, value);
                             continue;
                         }
 
@@ -874,7 +874,7 @@ public:
                         {
                             value = cinEvent->value*127/100;
                             setVolume(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, 0, value);
                             continue;
                         }
 
@@ -901,8 +901,8 @@ public:
 
                             setBalanceLeft(left, false, false);
                             setBalanceRight(right, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, left);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, right);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);
                             continue;
                         }
                     }
@@ -932,7 +932,7 @@ public:
                             }
 
                             setParameterValue(k, value, false, false, false);
-                            postponeEvent(PluginPostEventParameterChange, k, value);
+                            postponeEvent(PluginPostEventParameterChange, k, 0, value);
                         }
                     }
 
@@ -954,7 +954,7 @@ public:
                             if (midiprog.data[k].bank == nextBankId && midiprog.data[k].program == nextProgramId)
                             {
                                 setMidiProgram(k, false, false, false, false);
-                                postponeEvent(PluginPostEventMidiProgramChange, k, 0.0);
+                                postponeEvent(PluginPostEventMidiProgramChange, k, 0, 0.0);
                                 break;
                             }
                         }
@@ -1069,7 +1069,7 @@ public:
                     midiEvent->data.note.note    = note;
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOff, note, 0.0);
+                        postponeEvent(PluginPostEventNoteOff, channel, note, 0.0);
                 }
                 else if (MIDI_IS_STATUS_NOTE_ON(status))
                 {
@@ -1082,7 +1082,7 @@ public:
                     midiEvent->data.note.velocity = velo;
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOn, note, velo);
+                        postponeEvent(PluginPostEventNoteOn, channel, note, velo);
                 }
                 else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status))
                 {
diff --git a/c++/carla-backend/fluidsynth.cpp b/c++/carla-backend/fluidsynth.cpp
index 1a99c43..3f06255 100644
--- a/c++/carla-backend/fluidsynth.cpp
+++ b/c++/carla-backend/fluidsynth.cpp
@@ -860,7 +860,7 @@ public:
                         {
                             value = cinEvent->value;
                             setDryWet(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, 0, value);
                             continue;
                         }
 
@@ -868,7 +868,7 @@ public:
                         {
                             value = cinEvent->value*127/100;
                             setVolume(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, 0, value);
                             continue;
                         }
 
@@ -895,8 +895,8 @@ public:
 
                             setBalanceLeft(left, false, false);
                             setBalanceRight(right, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, left);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, right);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);
                             continue;
                         }
                     }
@@ -926,7 +926,7 @@ public:
                             }
 
                             setParameterValue(k, value, false, false, false);
-                            postponeEvent(PluginPostEventParameterChange, k, value);
+                            postponeEvent(PluginPostEventParameterChange, k, 0, value);
                         }
                     }
 
@@ -951,7 +951,7 @@ public:
                                 if (cinEvent->channel == cin_channel)
                                 {
                                     setMidiProgram(k, false, false, false, false);
-                                    postponeEvent(PluginPostEventMidiProgramChange, k, 0.0);
+                                    postponeEvent(PluginPostEventMidiProgramChange, k, 0, 0.0);
                                 }
                                 else
                                     fluid_synth_program_select(f_synth, cinEvent->channel, f_id, bankId, progId);
@@ -1066,7 +1066,7 @@ public:
                     fluid_synth_noteoff(f_synth, channel, note);
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOff, note, 0.0);
+                        postponeEvent(PluginPostEventNoteOff, channel, note, 0.0);
                 }
                 else if (MIDI_IS_STATUS_NOTE_ON(status))
                 {
@@ -1076,7 +1076,7 @@ public:
                     fluid_synth_noteon(f_synth, channel, note, velo);
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOn, note, velo);
+                        postponeEvent(PluginPostEventNoteOn, channel, note, velo);
                 }
                 else if (MIDI_IS_STATUS_AFTERTOUCH(status))
                 {
diff --git a/c++/carla-backend/ladspa.cpp b/c++/carla-backend/ladspa.cpp
index 35ec016..3d68fc5 100644
--- a/c++/carla-backend/ladspa.cpp
+++ b/c++/carla-backend/ladspa.cpp
@@ -715,7 +715,7 @@ public:
                         {
                             value = cinEvent->value;
                             setDryWet(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, 0, value);
                             continue;
                         }
 
@@ -723,7 +723,7 @@ public:
                         {
                             value = cinEvent->value*127/100;
                             setVolume(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, 0, value);
                             continue;
                         }
 
@@ -750,8 +750,8 @@ public:
 
                             setBalanceLeft(left, false, false);
                             setBalanceRight(right, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, left);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, right);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);
                             continue;
                         }
                     }
@@ -781,7 +781,7 @@ public:
                             }
 
                             setParameterValue(k, value, false, false, false);
-                            postponeEvent(PluginPostEventParameterChange, k, value);
+                            postponeEvent(PluginPostEventParameterChange, k, 0, value);
                         }
                     }
 
diff --git a/c++/carla-backend/linuxsampler.cpp b/c++/carla-backend/linuxsampler.cpp
index d9f7329..31ec418 100644
--- a/c++/carla-backend/linuxsampler.cpp
+++ b/c++/carla-backend/linuxsampler.cpp
@@ -341,7 +341,7 @@ public:
                     midiInputPort->DispatchNoteOff(note, 0, channel, time);
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOff, note, 0.0);
+                        postponeEvent(PluginPostEventNoteOff, channel, note, 0.0);
                 }
                 else if (MIDI_IS_STATUS_NOTE_ON(status))
                 {
@@ -351,7 +351,7 @@ public:
                     midiInputPort->DispatchNoteOn(note, velo, channel, time);
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOn, note, velo);
+                        postponeEvent(PluginPostEventNoteOn, channel, note, velo);
                 }
                 else if (MIDI_IS_STATUS_AFTERTOUCH(status))
                 {
diff --git a/c++/carla-backend/lv2.cpp b/c++/carla-backend/lv2.cpp
index 55ff00c..2aa127b 100644
--- a/c++/carla-backend/lv2.cpp
+++ b/c++/carla-backend/lv2.cpp
@@ -1761,7 +1761,7 @@ public:
                         {
                             value = cinEvent->value;
                             setDryWet(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, 0, value);
                             continue;
                         }
 
@@ -1769,7 +1769,7 @@ public:
                         {
                             value = cinEvent->value*127/100;
                             setVolume(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, 0, value);
                             continue;
                         }
 
@@ -1796,8 +1796,8 @@ public:
 
                             setBalanceLeft(left, false, false);
                             setBalanceRight(right, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, left);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, right);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);
                             continue;
                         }
                     }
@@ -1827,7 +1827,7 @@ public:
                             }
 
                             setParameterValue(k, value, false, false, false);
-                            postponeEvent(PluginPostEventParameterChange, k, value);
+                            postponeEvent(PluginPostEventParameterChange, k, 0, value);
                         }
                     }
 
@@ -1849,7 +1849,7 @@ public:
                             if (midiprog.data[k].bank == nextBankId && midiprog.data[k].program == nextProgramId)
                             {
                                 setMidiProgram(k, false, false, false, false);
-                                postponeEvent(PluginPostEventMidiProgramChange, k, 0.0);
+                                postponeEvent(PluginPostEventMidiProgramChange, k, 0, 0.0);
                                 break;
                             }
                         }
@@ -2001,9 +2001,9 @@ public:
                         if (channel == cin_channel)
                         {
                             if (MIDI_IS_STATUS_NOTE_OFF(status))
-                                postponeEvent(PluginPostEventNoteOff, minEvent->data[1], 0.0);
+                                postponeEvent(PluginPostEventNoteOff, channel, minEvent->data[1], 0.0);
                             else if (MIDI_IS_STATUS_NOTE_ON(status))
-                                postponeEvent(PluginPostEventNoteOn, minEvent->data[1], minEvent->data[2]);
+                                postponeEvent(PluginPostEventNoteOn, channel, minEvent->data[1], minEvent->data[2]);
                         }
                     }
 
@@ -2034,41 +2034,41 @@ public:
             {
             case LV2_PORT_TIME_BAR:
                 setParameterValue(k, timeInfo->bbt.bar, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.bar);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.bar);
                 break;
             case LV2_PORT_TIME_BAR_BEAT:
                 setParameterValue(k, timeInfo->bbt.tick, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.tick);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.tick);
                 break;
             case LV2_PORT_TIME_BEAT:
                 setParameterValue(k, timeInfo->bbt.beat, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.beat);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.beat);
                 break;
             case LV2_PORT_TIME_BEAT_UNIT:
                 setParameterValue(k, timeInfo->bbt.beat_type, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.beat_type);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.beat_type);
                 break;
             case LV2_PORT_TIME_BEATS_PER_BAR:
                 setParameterValue(k, timeInfo->bbt.beats_per_bar, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.beats_per_bar);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.beats_per_bar);
                 break;
             case LV2_PORT_TIME_BEATS_PER_MINUTE:
                 setParameterValue(k, timeInfo->bbt.beats_per_minute, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->bbt.beats_per_minute);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->bbt.beats_per_minute);
                 break;
             case LV2_PORT_TIME_FRAME:
                 setParameterValue(k, timeInfo->frame, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->frame);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->frame);
                 break;
             case LV2_PORT_TIME_FRAMES_PER_SECOND:
                 break;
             case LV2_PORT_TIME_POSITION:
                 setParameterValue(k, timeInfo->time, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->time);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->time);
                 break;
             case LV2_PORT_TIME_SPEED:
                 setParameterValue(k, timeInfo->playing ? 1.0 : 0.0, false, false, false);
-                postponeEvent(PluginPostEventParameterChange, k, timeInfo->playing ? 1.0 : 0.0);
+                postponeEvent(PluginPostEventParameterChange, k, 0, timeInfo->playing ? 1.0 : 0.0);
                 break;
             }
         }
diff --git a/c++/carla-backend/qtcreator/carla-backend.pro b/c++/carla-backend/qtcreator/carla-backend.pro
index 4c3179c..e5bac36 100644
--- a/c++/carla-backend/qtcreator/carla-backend.pro
+++ b/c++/carla-backend/qtcreator/carla-backend.pro
@@ -54,12 +54,12 @@ HEADERS = \
 INCLUDEPATH = .. \
     ../../carla-includes
 
-DEFINES += NDEBUG DEBUG
+DEFINES  = QTCREATOR_TEST
+DEFINES += DEBUG # NDEBUG
 DEFINES += CARLA_ENGINE_JACK
 DEFINES += CARLA_ENGINE_RTAUDIO HAVE_GETTIMEOFDAY __LINUX_ALSA__ __LINUX_ALSASEQ__ __LINUX_PULSE__ __RTAUDIO_DEBUG__ __RTMIDI_DEBUG__
-DEFINES += WANT_FLUIDSYNTH WANT_LINUXSAMPLER
 DEFINES += HAVE_SUIL
-DEFINES += QTCREATOR_TEST
+DEFINES += WANT_FLUIDSYNTH WANT_LINUXSAMPLER
 LIBS    = ../../carla-lilv/carla_lilv.a -ldl
 
 INCLUDEPATH += ../rtaudio-4.0.11
diff --git a/c++/carla-backend/vst.cpp b/c++/carla-backend/vst.cpp
index c6af6bc..8cb3f10 100644
--- a/c++/carla-backend/vst.cpp
+++ b/c++/carla-backend/vst.cpp
@@ -745,7 +745,7 @@ public:
                         {
                             value = cinEvent->value;
                             setDryWet(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_DRYWET, 0, value);
                             continue;
                         }
 
@@ -753,7 +753,7 @@ public:
                         {
                             value = cinEvent->value*127/100;
                             setVolume(value, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, value);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_VOLUME, 0, value);
                             continue;
                         }
 
@@ -780,8 +780,8 @@ public:
 
                             setBalanceLeft(left, false, false);
                             setBalanceRight(right, false, false);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, left);
-                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, right);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);
+                            postponeEvent(PluginPostEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);
                             continue;
                         }
                     }
@@ -811,7 +811,7 @@ public:
                             }
 
                             setParameterValue(k, value, false, false, false);
-                            postponeEvent(PluginPostEventParameterChange, k, value);
+                            postponeEvent(PluginPostEventParameterChange, k, 0, value);
                         }
                     }
 
@@ -829,7 +829,7 @@ public:
                         if (progId < prog.count)
                         {
                             setProgram(progId, false, false, false, false);
-                            postponeEvent(PluginPostEventMidiProgramChange, progId, 0.0);
+                            postponeEvent(PluginPostEventMidiProgramChange, progId, 0, 0.0);
                         }
                     }
                     break;
@@ -938,7 +938,7 @@ public:
                     midiEvent->midiData[1] = note;
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOff, note, 0.0);
+                        postponeEvent(PluginPostEventNoteOff, channel, note, 0.0);
                 }
                 else if (MIDI_IS_STATUS_NOTE_ON(status))
                 {
@@ -950,7 +950,7 @@ public:
                     midiEvent->midiData[2] = velo;
 
                     if (channel == cin_channel)
-                        postponeEvent(PluginPostEventNoteOn, note, velo);
+                        postponeEvent(PluginPostEventNoteOn, channel, note, velo);
                 }
                 else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status))
                 {
@@ -1217,7 +1217,7 @@ public:
                 if (self->x_engine->isOnAudioThread() && ! self->x_engine->isOffline())
                 {
                     self->setParameterValue(index, opt, false, false, false);
-                    self->postponeEvent(PluginPostEventParameterChange, index, opt);
+                    self->postponeEvent(PluginPostEventParameterChange, index, 0, opt);
                 }
                 else
                     self->setParameterValue(index, opt, false, true, true);
diff --git a/c++/carla-discovery/qtcreator/carla-discovery.pro b/c++/carla-discovery/qtcreator/carla-discovery.pro
index 4b48512..bdbda27 100644
--- a/c++/carla-discovery/qtcreator/carla-discovery.pro
+++ b/c++/carla-discovery/qtcreator/carla-discovery.pro
@@ -7,8 +7,8 @@ CONFIG    = release static
 CONFIG   += link_pkgconfig qt warn_on
 
 DEFINES   = DEBUG BUILD_NATIVE
-#DEFINES  += WANT_FLUIDSYNTH WANT_LINUXSAMPLER
-#PKGCONFIG = fluidsynth linuxsampler
+DEFINES  += WANT_FLUIDSYNTH WANT_LINUXSAMPLER
+PKGCONFIG = fluidsynth linuxsampler
 
 TARGET   = carla-discovery-qtcreator
 TEMPLATE = app
@@ -36,9 +36,9 @@ INCLUDEPATH = .. \
 LIBS = \
     ../../carla-lilv/carla_lilv.a
 
-#win {
-LIBS += -lkernel32 -luser32 -lshell32 -luuid -lole32 -ladvapi32 -lws2_32 -lqtmain
-#}
-
 QMAKE_CXXFLAGS *= -std=c++0x
-QMAKE_LFLAGS *= -static -static-libgcc
+
+win {
+    LIBS += -lkernel32 -luser32 -lshell32 -luuid -lole32 -ladvapi32 -lws2_32 -lqtmain
+    QMAKE_LFLAGS *= -static -static-libgcc
+}
diff --git a/c++/carla-includes/carla_includes.h b/c++/carla-includes/carla_includes.h
index afae052..096eb72 100644
--- a/c++/carla-includes/carla_includes.h
+++ b/c++/carla-includes/carla_includes.h
@@ -98,4 +98,6 @@ const char* bool2str(bool yesno)
     return yesno ? "true" : "false";
 }
 
+inline void pass(void) {}
+
 #endif // CARLA_INCLUDES_H
diff --git a/c++/carla-includes/carla_lv2.h b/c++/carla-includes/carla_lv2.h
index 0e0496b..95618ad 100644
--- a/c++/carla-includes/carla_lv2.h
+++ b/c++/carla-includes/carla_lv2.h
@@ -634,9 +634,9 @@ const LV2_RDF_Descriptor* lv2_rdf_new(const LV2_URI URI)
                             else if (strcmp(designation, LV2_TIME__speed) == 0)
                                 RDF_Port->Designation = LV2_PORT_TIME_SPEED;
                             else if (strncmp(designation, LV2_PARAMETERS_PREFIX, strlen(LV2_PARAMETERS_PREFIX)) == 0)
-                                0; // skip
+                                pass();
                             else if (strncmp(designation, LV2_PORT_GROUPS_PREFIX, strlen(LV2_PORT_GROUPS_PREFIX)) == 0)
-                                0; // skip
+                                pass();
                             else
                                 qWarning("lv2_rdf_new(%s) - got unknown Port Designation '%s'", URI, designation);
                         }
diff --git a/src/digitalpeakmeter.py b/src/digitalpeakmeter.py
index 5735385..075bce7 100644
--- a/src/digitalpeakmeter.py
+++ b/src/digitalpeakmeter.py
@@ -46,36 +46,38 @@ class DigitalPeakMeter(QWidget):
         self.m_paintTimer.timeout.connect(self.update)
         self.m_paintTimer.start()
 
-    def displayMeter(self, meter_n, level):
-        if meter_n < 0 or meter_n > self.m_channels:
-            qCritical("DigitalPeakMeter::displayMeter(%i, %f) - Invalid meter number" % (meter_n, level))
-            return
+    def displayMeter(self, meter, level):
+        if meter < 0 or meter >= self.m_channels:
+            return qCritical("DigitalPeakMeter::displayMeter(%i, %f) - invalid meter number" % (meter, level))
 
         if level < 0.0:
             level = -level
         if level > 1.0:
             level = 1.0
 
-        self.m_channels_data[meter_n - 1] = level
+        self.m_channelsData[meter-1] = level
 
     def setChannels(self, channels):
+        if (channels < 0)
+            return qCritical("DigitalPeakMeter::setChannels(%i) - channels must be a positive integer" % channels)
+
         self.m_channels = channels
-        self.m_channels_data = []
+        self.m_channelsData  = []
         self.m_lastValueData = []
 
         for x in range(channels):
-            self.m_channels_data.append(0.0)
+            self.m_channelsData.append(0.0)
             self.m_lastValueData.append(0.0)
 
     def setColor(self, color):
         if color == self.GREEN:
-            self.m_colorBase = QColor("#5DE73D")
+            self.m_colorBase  = QColor("#5DE73D")
             self.m_colorBaseT = QColor(15, 110, 15, 100)
         elif color == self.BLUE:
-            self.m_colorBase = QColor("#52EEF8")
+            self.m_colorBase  = QColor("#52EEF8")
             self.m_colorBaseT = QColor(15, 15, 110, 100)
         else:
-            return
+            return qCritical("DigitalPeakMeter::setColor(%i) - invalid color" % color)
 
         self.setOrientation(self.m_orientation)
 
@@ -98,6 +100,9 @@ class DigitalPeakMeter(QWidget):
             self.m_gradientMeter.setColorAt(0.8, self.m_colorBase)
             self.m_gradientMeter.setColorAt(1.0, self.m_colorBase)
 
+        else:
+            return qCritical("DigitalPeakMeter::setOrientation(%i) - invalid orientation" % orientation)
+
         self.updateSizes()
 
     def setRefreshRate(self, rate):
@@ -110,6 +115,7 @@ class DigitalPeakMeter(QWidget):
             value = 0
         elif value > 5:
             value = 5
+
         self.m_smoothMultiplier = value
 
     def minimumSizeHint(self):
@@ -119,17 +125,19 @@ class DigitalPeakMeter(QWidget):
         return QSize(self.m_width, self.m_height)
 
     def updateSizes(self):
-        self.m_width = self.width()
+        self.m_width  = self.width()
         self.m_height = self.height()
         self.m_sizeMeter = 0
 
         if self.m_orientation == self.HORIZONTAL:
             self.m_gradientMeter.setFinalStop(self.m_width, 0)
+
             if self.m_channels > 0:
                 self.m_sizeMeter = self.m_height / self.m_channels
 
         elif self.m_orientation == self.VERTICAL:
             self.m_gradientMeter.setFinalStop(0, self.m_height)
+
             if self.m_channels > 0:
                 self.m_sizeMeter = self.m_width / self.m_channels
 
@@ -142,10 +150,12 @@ class DigitalPeakMeter(QWidget):
         painter.setBrush(Qt.black)
         painter.drawRect(0, 0, self.m_width, self.m_height)
 
-        meter_x = 0
+        meterX = 0
+        painter.setPen(self.m_colorBackground)
+        painter.setBrush(self.m_gradientMeter)
 
         for i in range(self.m_channels):
-            level = self.m_channels_data[i]
+            level = self.m_channelsData[i]
 
             if level == self.m_lastValueData[i]:
                 continue
@@ -159,20 +169,15 @@ class DigitalPeakMeter(QWidget):
 
             if value < 0.0:
                 value = 0.0
-
-            # Don't bounce the meter so much
-            if self.m_smoothMultiplier > 0:
+            elif self.m_smoothMultiplier > 0:
                 value = (self.m_lastValueData[i] * self.m_smoothMultiplier + value) / (self.m_smoothMultiplier + 1)
 
-            painter.setPen(self.m_colorBackground)
-            painter.setBrush(self.m_gradientMeter)
-
             if self.m_orientation == self.HORIZONTAL:
-                painter.drawRect(0, meter_x, value, self.m_sizeMeter)
+                painter.drawRect(0, meterX, value, self.m_sizeMeter)
             elif self.m_orientation == self.VERTICAL:
-                painter.drawRect(meter_x, value, self.m_sizeMeter, self.m_height)
+                painter.drawRect(meterX, value, self.m_sizeMeter, self.m_height)
 
-            meter_x += self.m_sizeMeter
+            meterX += self.m_sizeMeter
             self.m_lastValueData[i] = value
 
         painter.setBrush(QColor(0, 0, 0, 0))
@@ -180,7 +185,7 @@ class DigitalPeakMeter(QWidget):
         if self.m_orientation == self.HORIZONTAL:
             # Variables
             lsmall = self.m_width
-            lfull = self.m_height - 1
+            lfull  = self.m_height - 1
 
             # Base
             painter.setPen(self.m_colorBaseT)
@@ -203,7 +208,7 @@ class DigitalPeakMeter(QWidget):
         elif self.m_orientation == self.VERTICAL:
             # Variables
             lsmall = self.m_height
-            lfull = self.m_width - 1
+            lfull  = self.m_width - 1
 
             # Base
             painter.setPen(self.m_colorBaseT)
diff --git a/src/jackmeter.py b/src/jackmeter.py
index d6640bc..9527c24 100755
--- a/src/jackmeter.py
+++ b/src/jackmeter.py
@@ -79,9 +79,9 @@ def session_callback(event, arg):
 def reconnect_inputs():
     play_port_1 = jacklib.port_by_name(client, "system:playback_1")
     play_port_2 = jacklib.port_by_name(client, "system:playback_2")
+    client_name = str(jacklib.get_client_name(client), encoding="utf-8")
     list_port_1 = c_char_p_p_to_list(jacklib.port_get_all_connections(client, play_port_1))
     list_port_2 = c_char_p_p_to_list(jacklib.port_get_all_connections(client, play_port_2))
-    client_name = str(jacklib.get_client_name(client), encoding="utf-8")
 
     for port in list_port_1:
         this_port = jacklib.port_by_name(client, port)