Body: I built a polyphonic synthesizer in Python with a tkinter GUI styled after the Moog Subsequent 37.

  Features: 3 oscillators, Moog ladder filter (24dB/oct), dual ADSR envelopes, LFO, glide, noise generator, 4 multitimbral channels, 19 presets, rotary
  knob GUI, virtual keyboard with mouse + QWERTY input, and MIDI support.

  No external GUI frameworks — just tkinter, numpy, and sounddevice.

Damn, that is really, really cool.

Thanks for building this and thanks for sharing.

Really ambitious and really cool, congrats on finishing and sharing!

Getting into the weeds, how are you doing individual voices, ie an an analog synth needs a separate signal path for each note of polyphony with inadvertent and unavoidable interference… which ironically is desirable.