I own a 512Ke running system 6.0.8 and I would love to get a midi interface with accompanying software that would allow me to send and receive MIDI between my Yamaha CLP 501 for example. Largely because it would look very cool and it'd be just awesome to do. I know there are some interfaces in existence that plug into one of the 512Ke's serial ports (which one?) and allow me to do midi. What software would I then need to make this work? Anybody have something similar working on an old mac? Also the software must work with system 6.0.8 because the 512Ke can't go any higher if course. (I also own system 1 and 5 disks) Any help I could get on this?