The reason I approached this by chords instead of keys, is that I'm building an electronic instrument. [1] I can set it to play in any key before starting a son

The reason I approached this by chords instead of keys, is that I'm building an electronic instrument. [1] I can set it to play in any key before starting a song, but I'm trying to figure out how I should trigger chords (and what chords I will want to trigger) in the moment. [1] demo: https://youtu.be/JWj3QP9wsCU https://youtu.be/JWj3QP9wsCU