The Last Song by Nicholas Sparks

The Last Song is a 2009 novel by American author Nicholas Sparks. The Last Song is Nicholas Sparks' fifteenth published novel, and was written specifically as the basis for the film adaptation by the same name. The Last Song was released on September 8, 2009 by Grand Central Publishing. The story of The Last Song revolves around the summer of Ronnie Miller's seventeenth year, during which she is sent to stay with her estranged father. Through their shared love of music, the duo reconnect.
The Last Song revolves around a seventeen year old Ronnie Miller, who is sent to spend the summer after graduation with her ten-year-old brother, Jonah, visiting her father, Steve. Steve, a former Juilliard professor, had divorced Ronnie's mother three years earlier and left New York City. Ever since, Ronnie has refused to talk to him or to play their shared passion, the piano, and becomes a rebellious clubber. Upon arrival, Jonah immediately bonds with Steve over a stained glass window that Steve has been recreating for the local church after the original burned down in a mysterious arson. Ronnie, however, is hostile. At her request, Steve boards up his beloved piano and instead pursues his search for God's presence. He also begins writing a piano composition using a piano owned by the church, but struggles with its ending.
At the town's annual carnival, Ronnie collides with beach volleyball player Will Blakelee as he dives for a ball. Ronnie storms off and meets gothic Blaze, who befriends Ronnie and introduces her to Marcus, Blaze's abusive boyfriend, and his cronies, Lance and Teddy... (Summary by Wikipedia)