Step Synth
A step sequencer — drop it and an 8-step Cm7 arpeggio loops through a synth voice; a Clock drives playback. Open the sequencer to edit its LANES × STEPS grid: click / drag-paint cells to toggle them, drag a lane's label to re-pitch it, ×/+ a lane, and set Rate / Gate / step-count. It drives melody now, and percussion the same way once a drum kit is the voice. A FUNCTIONAL preset (explicit nodes + connections).