"<< I have to tune a Yamaha CP-70 and would like to know of any special tips for this. Anyone have stories/experience?>>" I tuned a lot of these back in the 70's and found that there is no difference between the sound of the piano if you spend 20 minutes, or 2 hours tuning it. The inharmonicty is unreal. The method I would use is to leave the octave "in the least objectionable place". Close counts. Mark Wisner Piano Service Yamaha Corporation mwisner@yamaha.com
This PTG archive page provided courtesy of Moy Piano Service, LLC