It's been a while since I've heard someone mention the Master System, and especially its sound. There's been a lot of work done to interface or use systems like

It's been a while since I've heard someone mention the Master System, and especially its sound. There's been a lot of work done to interface or use systems like the C64, the NES and the GameBoy for sound production. Adding a second SID to the C64 is somewhat common, there are several MIDI modules and even (contemporary) software for producing sound on the system. GameBoys seem more prone to be used as output devices, although there are some trackers available that run on it natively (better get some backlight if you want to use it in a DJ set). I've been looking at this recently, as I thought about doing some computer music and the restraints of both the output and (if actually using such systems for the softwarwe) the input would seem like a good way to constrain the learning experience. Didn't encounter lots of references to the Sega side, though. It seems you can still buy that chip for cheap, as opposed to e.g. the SID or Pokey.