Peggy -
Welcome to the board. I agree that it is much easier to find music themed fabric than to find a music themed pattern. My wife is a singer, so we have been on the lookout for a music pattern, but so far the only thing we've found is applique shapes of instruments. We have found lots of fabric, though. We have also made a quilt in a simple Turning Twenty pattern for a friend who is also a singer:
http://www.quiltingboard.com/t-101268-1.htm
I hope you're able to find something you like.
Darren