I know this isn't the Yamaha or synth forum, but I know there are a lot of good knowledgeable guys here. Hopefully one of you knows. I've had to chart an opening to the EW&Fire tune "September" because the printed music that the MD bought sucked. So I went to lay down some sample tracks so he could see how I was approaching it... DX7 electric piano was the last to go down... and the intonation/blend was just plain sour. Could I not have tuned the guitars and bass right? I wasn't as meticulous as usual and they can be contributing the to issue. Yeah... I think I didn't tune the Les Paul either. My bad. The recording wasn't designed for public consumption. I was just conceptualizing so we can modify a chart that seems almost written for a Jr. High pep band HOWEVER... I threw my KORG CA40 on the DX7... Low and behold at least 7 cents flat. I have no idea how to reset it to bring it up to pitch. I could do a master reset, but I'm afraid that I'll lose the voices the previous owner programmed. Anyone know how to reset the tuning on this thing back to A=440? Anyway... if you want to hear sour, click below... HELP!!!!