snes controller music maker

hello! i want to create a sort of snes-controller-instrument. can anyone steer me in the right direction? basically as you press buttons on the controller, music would be produced from an external speaker.

The controllers are effectively shift registers, so reading them is easy. Google any of the abundant SNES to USB projects out there for more info than you could ever want.

The other half (music output) is likewise also covered in tons of projects, depending on what you want to do. MIDI? PWM? Beeping piezos? MP3/Wave playback?

Just as a friendly tip, you're going to have to do a bit of legwork before you'll get much help. Posting specific questions about your current roadblock will get you much further than vague project goals. E.g., what have you done so far? What isn't working? Etc...