Classic Tone Generator half-rack format (basically a synth without a keyboard), can be driven via MIDI or directly by serial from PC or Mac. Lots of music posted on YouTube using this bank of classic sounds. I drove it from my P-80 keyboard for rich harmony pads, for sequencing, and binaural frequency generation - there's a lot you can do with this classic Yamaha kit! / No manual (available online) / Driver and Yamaha Driver Update Utility: www.driverguide.com/driver/detail.php?driverid=115812 Broad connectivity options (see pics) DIN MIDI connectors & flexibility I can email Hi-Rez images in case the posted ones lack enough detail. $ 66