Play midi scores with a selection of 4 synth voices (sine, saw, triangle, square).
This patch is a mix between two of Critter and Guitari’s original patches: Basic Poly (for the voices) and MidiFile (for midi file player part).

Keys 1 – 24 select and plays a midi score (you can replace the J-S Bach ones with your own, as long as you respect the numerotation system)

Aux changes the voice (sine, square, saw, triangle)

Knob 1 changes the tempo

Knob 2 changes the cutoff on the lowpas filter

Knob 3 changes the pitch

Knob 4 changes the decay

Credits go to Owen Osborn @ Critter and Guitari I expect.
I just merge the two patches and made it functionnal.