Chiptune is fun to mess around with, but programming on a tiny Gameboy screen can get a little annoying. Nintendo created the Super Gameboy to allow players to plug Gameboy cartridges into their SNES, so it would stand to reason that you could run LSDJ or Nanoloop through your TV. But how to get the audio out and recordable? Kyle Robinson has a nifty little Instructable on how to add an 1/8″ audio jack to the cartridge. Only basic soldering ability required.
[Instructables via Make: Online]