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=USUAN1100057

MacLeod's description:

Genre: Silent Film Score
Length: 0:38
Instruments: Percussion, Trombone, Tuba, Trumpet
Tempo: 126

Circus-type march. 034
ISRC: US-UAN-11-00057
Bright, Bouncy, Humorous 2006