Be sure to add me to your favorites list Original 70's Vintage Yamaha CP30 Electronic Piano Keyboard Operating / Owner's Manual Book. This is an original vintage Yamaha User's / Owner's / Operating Manual for the Yamaha CP 30 electronic piano keyboard, from 1978. It's in good to very good condition. There are some marks and minor creases, mostly on the covers, but the pages are in even better shape. This booklet is complete and very helpful if you have one of these now classic electronic keyboards. It is all in English and is an original Yamaha book from the 1970's! 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! Check out my Store!