What is the theme of hugging the jukebox by Naomi Shihab Nye?

The theme of Hugging the Jukebox by Naomi Shihab Nye is one regarding a young six year old boy who lives with his grandparents on a Caribbean island. Though the boy is young, he has an amazing singing voice, and a love of singing that somewhat drives his elderly grandparents to annoyance. Although his grandparents are growing old, and are having difficulty determining how to navigate life in their old age, their six year old grandson, through his gift of song, gives them more purpose in their later years.