Roll Synth
A composing rig — a Piano Roll drives a POLYPHONIC synth voice (8 voices), with a Clock for transport. Draw notes on the roll's pitch x time grid; press the Clock's Play and it plays them back through a Wavetable oscillator + ADSR + a low-pass filter, out to the Speaker — chords and all. Shape the sound with the ADSR / Morph / filter, set the tempo on the Clock. A Harmonic Field scope on the output reads the harmony of what you draw — the notes glow on a circle-of-fifths wheel with the detected key and chord named (it reads the summed voices, not one note). A FUNCTIONAL preset (explicit nodes + connections), palette-only.