Totally Unrelated by Tom Ryan

Neil has been playing Celtic music with his family since he was five years old. Their family band goes on tour every summer, and they've become very popular. Neil's best friend wants to enter a talent show with him, but Neil thinks they need a singer. Then at one of the family performances, Neil meets a girl. Sandy wants to play guitar with him sometime, but Neil discovers that she has a voice too. She agrees to perform in the talent show and starts to have feelings for him. Neil's guitar playing improves as he puts in more practice, but a problem is brewing and may ruin everything.

Celtic music is unusual for a novel, but it's not a problem. The plot moves quickly, and the author was able create an interesting problem. I don't know that I liked Neil's decision, but either way would have had issues. It all worked out in the end.