It now takes 95 years for copyrights to expire. That means music from 1924 is now freed up. You can listen to and do what you want with works from then. Consider this piece, a very familiar piece.
As a treat, this version is a remixed version of the oh so familiar Rhapsody in Blue. The original version here. There are some differences to what you’ve heard. Visit the version on YouTube to read about them.
For more items released from copyright coverage, visit Open Culture. They’ve got information on other movies, novels, plays, and other creative works. Or consider Wikipedia pages for more literature, music, film and artworks published in 1924.