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=USUAN1100156

MacLeod's description:

Genre: Silent Film Score
Length: 2:20
Instruments: Piano, Tuba
Tempo: 85

bubbly ragtime piano with an occasional tuba. 031
ISRC: US-UAN-11-00156
Bouncy, Bright, Humorous 2006