Your subject title refers to photographs and the post itself is concerned with losing music files. However, the same backup rules apply - make sure your personal data is secure by having more than one copy, off-line to the computer.

I'm not at all familiar with music-type programs but I do know that some of them can accidentally destroy the source files during the copying process.

If you post a specific question regarding how to make additional copies of music files in the Music and Audio section of this forum, I’m sure you’ll get lots of advice.