what was Isabel's main conflict?

Isabel needs to find herself. Isabel’s first perspective starts with her playing her trumpet on the streets of Havana, trying to hear the clave in her music, but she cannot identify it. When the family decides to leave, but realize they have no gasoline for the boat, she trades her trumpet for the gasoline, despite how precious it is to her. Isabel knows that her trumpet is not a precious as her father’s life, and their freedom. On the trip they discuss the clave and how she can learn it, and Lito claims she could only learn it in Havana. At the end of the novel though, she wears her friend Ivan’s hat, and plays the Star-Spangled banner in class on her trumpet with a “guajeo melody,” finally feeling the clave (308). As a musician, Isabel realized her own growth into adulthood through music.