diff --git a/examples/test1.dsp b/examples/test1.dsp
index c43ad2f..cf19d1a 100644
--- a/examples/test1.dsp
+++ b/examples/test1.dsp
@@ -1,8 +1,11 @@
+/*
+ All controllers of the VCV Prototype are accessed using metadata.
+ */
 
 import("stdfaust.lib");
 import("rack.lib");
 
-// Using knobs (from 1 to 6). Knob [0..1] range is mapped on [min..max] slider range, taking 'scale' metadata in account
+// Using knobs ([knob:N] metadata with :N from 1 to 6). Knob [0..1] range is mapped on [min..max] slider range, taking 'scale' metadata in account
 
 vol1 = hslider("volume1 [knob:1]", 0.1, 0, 1, 0.01);
 freq1 = hslider("freq1 [knob:2] [unit:Hz] [scale:lin]", 300, 200, 300, 1);
@@ -10,17 +13,17 @@ freq1 = hslider("freq1 [knob:2] [unit:Hz] [scale:lin]", 300, 200, 300, 1);
 vol2 = hslider("volume2 [knob:3]", 0.1, 0, 1, 0.01);
 freq2 = hslider("freq2 [knob:4] [unit:Hz] ", 300, 200, 300, 1);
 
-// Using switches (from 1 to 6)
+// Using switches ([switch::N] metadata with :N from 1 to 6)
 
 gate = button("gate [switch:1]");
 
-// Using bargraph to control lights (from 1 to 6 with 3 colors)
+// Using bargraph to control lights ([light_red|green|blue:::N] metadata with :N from 1 to 6, to control 3 colors)
 
 light_1_r = vbargraph("[light_red:1]", 0, 1);
 light_1_g = vbargraph("[light_green:1]", 0, 1);
 light_1_b = vbargraph("[light_blue:1]", 0, 1);
 
-// Using bargraph to control switch leds (from 1 to 6 with 3 colors)
+// Using bargraph to control switchlights ([switchlight_red|green|blue:::N] metadata with :N from 1 to 6, to control 3 colors)
 
 swl_2_r = vbargraph("[switchlight_red:2]", 0, 1);
 swl_2_g = vbargraph("[switchlight_green:2]", 0, 1);