Two very different high school students discover a mutual appreciation for writing songs for the guitar. Tripp Broody has lost a lot; his father died and his best friend moved away and he doesn’t really connect with people. In contrast, Lyla Marks is perfect. She gets good grades, her teachers love her, and she plays the cello beautifully. Forced to share a music practice room on alternating days at school, they start a pen-pal-like exchange daily that leads to a musical collaboration that promises to change both of their lives forever. Many chapters are structured as Tripp’s and Lyla’s notes, giving readers a unique vantage point into their burgeoning friendship.