Depends a bit on where you want to go with this. If you want this to play nicely musically you want low latency and I'd look for programming languages made for

Depends a bit on where you want to go with this. If you want this to play nicely musically you want low latency and I'd look for programming languages made for audio. Just watch a few introductions and pick what you like best. More professionally I'm not experienced, but maybe writing a VST MIDI instrument would make sense. If it's just about the sound maybe you should start at the DAW end and use Bitwigs Grid or Ableton (possibly with max/msp).