MS-20m drone patch basics
By scuto
Patch recreated here from memory. Adjust the following as one wishes: ESP signal level; VCO 2 pitch (gently!); both filters' cutoff. Feedback loop can come from Signal out if phones out is ok for one's recording/listening purposes. Ring modulation for OSC 2 optional. PWM on MS-20m can affect timbre when ring modulation on OSC 2 is used.