I took your "M" idea and then added a music note to the mix for the latter part. I couldn't get anything to look really great with a piano for the "B", but I really liked what I came up with so I wanted post it for you: #8.
Let me know if you are digging it or not, as I would be happy to provide revisions if requested. Thanks for looking.
Thanks GoodGuy! I think it's not bad, but I have a hard time seeing a teen girl wanting to wear this on a shirt. I think it has to look a little bit more current and hip. I checked your other stuff - you've really got talent. Thanks so much!!!