The teen pop song was written by Diane Warren and produced by David Foster, for the Wes Craven-directed movie of a similar name (1999).

The single was certified gold by the Recording Industry Association of America (RIAA) in the United States for sales of 500,000 copies.

Gloria Estefan and band NSYNC recorded their vocals for the song in 1999.

"Music of My Heart" is a teen pop song that lasts for four minutes and thirty-one seconds.

The song is composed in the key of B major later changing to the key of D-flat major and is set in time signature of common time, with a moderately slow tempo of 68 beats per minute.