home/ atoms/ buchla-250e-stage-modes

The 250e function generator's five stage modes — pulse, advance, sustain, enable, stop — allow each step to behave differently in response to gates and time

The 250e 16-stage function generator provides five per-stage advancement modes. Pulse mode (default): advances on a pulse or switch press. Advance mode: advances only when the stage timer expires. Sustain mode: runs on timer but pauses if a gate is held high at the Start/Adv input. Enable mode (opposite of sustain): pauses until a gate is high. Stop mode: halts at the stage until manually triggered. These modes enable complex gate-controlled sequence behaviors — steps that hold until a performer makes a gesture, steps that skip unless triggered externally, and steps that run freely on internal time. Any combination across 16 stages creates highly configurable sequence structures.

Examples

Set stage 8 to Stop to create a performance cue point where the sequence always pauses, waiting for a drum hit pulse to advance; set stages 9-12 to Enable to play only when a sustained gate is present.

Assessment

Describe the complete behavior of a sequence where stages 1-4 are in Advance mode (1-second each), stage 5 is in Stop mode, and stage 6 is in Enable mode with a 2-second timer. What triggers are needed to progress through all stages?

“Sustain Mode – This mode is indicated when the "sust" LED is on. The stage will advance when the time value runs out. However, if a gate is applied to the Start / Adv input the stage will pause (sustain).”
corpus · buchla-200e-electric-music-box-user-s-guide-official-free-pd · chunk 10