Be sure to add me to your favorites list Original Yamaha SY77 AWM and AFM Element Edit Reference / Waveform List Reference Quick Info Sheet. This is a supplemental / quick view type of sheet for the Yamaha SY-77 synthesizer workstation. It's an original document from Yamaha and has quick, easy view detailed information on the sound forming functions of this powerful synthesizer. One side as the AWM (sampled waveforms) Element Edit Reference, with diagram, AWM element edit jobs, and waveform list. The other side as the AFM (FM synthesizer) Element Edit Reference, with diagram, AFM element edit jobs, and examples of how the FM operators are used (one to six carriers). It is one thick sheet of sturdy paper (not quite thick enough to call it cardboard) in very good used condition, with some minor marks but no major damage. From the early 1990's, a helpful easy to use reference for use with the SY77. Printed in Japan! I have a few of these available at this time. 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. Thanks for looking! Check out my Store!