Tangled Notes in Watermelon

Cora is mourning the sudden loss of her grandmother. Cora will miss Gran--her only connection to someone who shares the strange condition she was born with-synesthesia.When Cora listens to music, she sees colors and shapes. She learned early on that other kids do not share her unique experience, so it's best not to speak of it to anyone-except her grandmother, who now is gone. Then a boy named Jesse shows up, distraught over the loss of Gran. Who is he? And how does he know Cora's grandmother?