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=USUAN1100108

MacLeod's description:

Genre: Blues
Length: 1:55
Tempo: 80

Guitar, harmonica, piano 12 bar blues in D. 011
ISRC: US-UAN-11-00108
Relaxed 2006