compile and upload

arduino-cli compile --fqbn arduino:avr:uno ArduinoToneSampler.ino
arduino-cli upload -p /dev/ttyACM0 --fqbn arduino:avr:uno ArduinoToneSampler.ino && arduino-cli monitor -p /dev/ttyACM0

Links

http://www.mv-spoeck-wissenswert.de/html/Toene_und_Notennamen.htm

https://www.mathematik.uni-marburg.de/~thormae/lectures/mmk/mmk_5_1_ger_web.html#1

https://mido.readthedocs.io/en/stable/

https://github.com/users/Domroon/projects/11

https://www.arduino.cc/reference/en/language/functions/communication/spi/

https://github.com/khoih-prog/TimerInterrupt