Be sure to add me to your favorites list Original Owner's Manual Book for the Roland M-GS64 Sound Expansion 64 Voice Midi Module. This is an overall good condition original owner's manual book for the Roland 64 voice sound expansion midi module, model M-GS64. There's a good bit of wear, spots and stains on the covers, mostly the front, and the spine has been taped over by a previous used, but overall the interior pages are in good to very good shape. This is a great resource if you have one of these rack mounted sound modules. Genuine Roland document, from 1995. This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thank you so much for looking! Please check out my Store!