Signal flows downward through single-glyph unit generators; each MIDI note voices the whole grid; the mix renders low-latency to PipeWire (reusing the native path from spectrust). Grid edits recompile and hot-swap without dropping audio. Pairs with orca (note/CC source) and spectrust (visualizer). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GLUwWE2KmFPzhKaf67tWbx