Here the project you all have been helping me with. Thanks!!! I think I need to upgrade to a board with the audio shield so I do not get the distortion when I am running multiple tones at the same time. Running through an envelope helped but it could be better. Also I want to play around with some FM synth features but that can wait for now.

https://www.youtube.com/watch?v=fkI-F7aqs3c

https://hackaday.io/project/163160-c...c-button-synth

https://github.com/jonHickam/teensy_...ccordion_synth