Glicol synth and drum nodes are silent without an upstream trigger (`imp`, `seq`, or `speed`)

Glicol’s synthesis nodes (bd, hh, sn, sawsynth, envperc, etc.) do not produce sound on their own — they fire only when their input signal goes above 0. A trigger source (imp for steady pulses, seq for rhythmic patterns, or speed to set the rate) must appear upstream in the chain. Writing bd 0.2 alone produces silence. This is analogous to a gate-triggered envelope: the node waits for a positive gate to open.

Examples

Wrong: out: bd 0.2 — silent. Correct: out: speed 4.0 >> seq 60 _ 60 _ >> bd 0.2 Correct: out: imp 4 >> bd 0.5

Assessment

Explain why out: sawsynth 0.01 0.5 alone produces silence, and add the minimum upstream chain to make it play four evenly-spaced notes per bar.