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=USUAN1100648

MacLeod's description:

Genre: Soundtrack
Length: 0:54
Instruments: Clarinet, tuba, percussion, guitar
Tempo: 130

Happy bouncy theme for a comic hero! Written for Craig Knitt's short "Happy Boy". This track has themes in 2 variations in 2 tempos.
ISRC: US-UAN-11-00648
Bouncy, Bright, Humorous 2009