Music by Kevin MacLeod (original composer: Camille Saint-Saëns). Available under the Creative Commons Attribution 3.0 Unported license. Download link: http://incompetech.com/music/royalty-free/mp3-royaltyfree/Danse%20Macabre%20-%20Sad%20Part.mp3

MacLeod's description:

Genre: Classical
Length: 0:21
Instruments: Violin and orchestra

Thematically, a small section of "Danse Macabre" - but with good motion. 005 Dark, Eerie, Intense, Mysterious 2009