hmmm... looks like the SC-55 conforms to the GM General MIDI standard. you should be able to control it with anything from octamed sound studio, to music-X, and Delux music construction set. now there's a blast from the past.
just need a midi interface and some cables. If you get really wizzy at understanding MIDI protocols, you may be able to upload and download audio samples to and from the device using Music-X or Sound Studio... but i dunno if the SC55 can allow for that...
