my Yamaha has 2 keys that are not working in every octave they are out. they are the "E" key and the 3rd. black key.. all the way across the board. Can someone tell me what's wrong?
my Yamaha has 2 keys that are not working in every octave they are out. they are the "E" key and the 3rd. black key.. all the way across the board. Can someone tell me what's wrong?