PWM oscillator is effectively available with new `Note.waveform_end` property. Make some demos of this. See: https://github.com/adafruit/circuitpython/issues/9780#issuecomment-2453683765
PWM oscillator is effectively available with new
Note.waveform_endproperty.Make some demos of this.
See: adafruit/circuitpython#9780 (comment)