Here's a page that shows a real-time spectrogram of audio recorded from your microphone:
https://observablehq.com/@skybrian/microphone-audio-spectrogram
@tindall@cybre.space perhaps relevant to your interests?
Here's a page that shows a real-time spectrogram of audio recorded from your microphone:
https://observablehq.com/@skybrian/microphone-audio-spectrogram
@tindall@cybre.space perhaps relevant to your interests?
Here are three C scales played on the treble side of my accordion, using different switches. (L, then M, then LMM.)