When Does Copyright Expire On My Music?
by Richard Cunningham

The expiration date on your copyrighted music isn't something you have to worry about, at least not in your lifetime. The music that you've written is copyrighted the moment you've put it onto paper or recorded it. The reason you don't have to worry about expiration is because the music is protected until 70 years after the death of the author. In the case of your music, that author would be you.