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=USUAN1100645

MacLeod's description:

Genre: Contemporary
Length: 0:54
Instruments: Piano, bass

Short piece with a very quiet and rich piano part - the bass is barely audible, for low-end support.
ISRC: US-UAN-11-00645
Relaxed, Uplifting 2009