Whenever you strike a trigger on your electronic drum set (e.g., a cymbal, a drum pad, etc.), it will trigger a Voice in the module. AVoice is the sound assigned to that trigger. Each Voice consists of[/][] [/][]two Layers, and each Layer has its own Instrument (a drum sound[/][]such as a tom, snare, hi-hat, etc.) which can be selected or edited.[/]