Mannerism mixes Baroque dance music with contemporary electronic beats adding an extra flavour of 8 bit vintage videogame music. Tilt! Records
Using old hardware to make music is a great intellectual challenge, and judging from the following videos you can get incredible results having a great time.
Moreover recycling is always better than throwing away: for those who have old stuff going bad in the garage, put all that trusty old (486/Pentium) PCs to good use trying Adlib Tracker II or Converter (MS-DOS), Non-Sequencer or Seq24 (Linux).