Q. I have about 190 pieces of old sheet music, in good condition, most of which picture old recording or movie stars on the covers. Where can I find buyers?–Darlene Dancey, Mendota, Ill.

As we ring in 2020, a new batch of books, sheet music, art and films have entered the public domain. Hundreds of copyright protections for artists who died in 1924 are now free to use or repurpose ...