Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200047

MacLeod's description:

Genre: Contemporary
Length: 3:49
Instruments: Bass, Music Box, Cello
Tempo: 88

Quirky rhythms. Raw production.
Sheet Music [http://incompetech.com/m/c/royalty-free/sheetmusic/Brittle-Rille.pdf]
ISRC: USUAN1200047 Bright, Calming, Mysterious 2012