Unless the disk has been physically damaged there are ways to work backwards and recover your music.

Tenorshare target="_blank">http://www.any- target="_blank">http://www.any-data-recovery.com/product/datarecoveryformac.htm

Today you are in much luck because you will learn about the best solution to recover music from Samsung phone effectively, backed up with many reviews from different users worldwide.

There are always many data recovery programs out there that could help easily restore the inaccessible data from a storage device. Why not to try one?
Plunge this storage device to your computer and download a data recovery program to help you.
A data recovery freeware could be a good chance to go on:
http://www.freeware-fix.blogspot.com/2013/04/data-recovery.html
This data recovery freeware has offered four data recovery options to cope with almost all data recovery problems, such as the accidental deletion or formatting data recovery problems, inaccessible data recovery issue and virus infection data recovery issue, etc.
I hope my words could help you!

You may need to try some music recovery software to rescue the songs, here are some for your option. You may not recover all the ones, but will recover most of them.

Music Recovery (for Windows)
Music Recovery for Mac

Both programs are able to recover pictures, videos and music files.

Note: Before your files are recovered, do not attempt to save more files to the MP in case the original lost files are overwritten.