LG Optimus L9 deleted my music - on its own - HELP!

[KitKatAttack]

Hi! My phone somehow has lost/deleted my music files. They aren't on my SD card, why has this happened? Is there anywhere on the phone that the music files might be hiding?

 

[Titillating]

Are you sure your phone "deleted" them? Haven't ever heard of anything like that. It's possible your SD card just got corrupted or something and the files got wiped.

 

[KitKatAttack]

Are you sure your phone "deleted" them? Haven't ever heard of anything like that. It's possible your SD card just got corrupted or something and the files got wiped.

It's possible. But why and how would that happen?