Johan -- I'm not really sure what a zero cross point is, could you explain to me more?
Steve -- I was planning on using a MIDI track.
Could you maybe message me a step by step of what hardware to get and how to implement all that stuff you explained into it?
was planning on using a MIDI track. I was thinking of importing the notes as different short "songs" into an arduino mp3 player and coding, "when this frequency is registered, play this song on repeat"