The Commodore 64 music software industry is alive and well; at least as much so as the GameBoy and Nintendo Famicom music software industries, anyway. Some intrepid hackers have created
new music software for the Commodore 64; Prophet 64 is available in 3 flavours: standard, TB (which behaves like a Roland TB-303, or as much as one as the SID chip will do), and TR (which behaves like a TR-909, only with Rob Hubbard-style drum samples, as heard in much video-game music). Prophet 64 is free software, and will run happily on a 64 emulator, though with a real 64 it can be controlled with game paddles and synced to MIDI devices (with a simple add-on interface). To facilitate getting it onto a 64, it's available as a disk image, or as a WAV file to record to cassette for loading.
(via MusicThing)