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=USUAN1100218

MacLeod's description:

Genre: Polka
Length: 3:26
Instruments: Guitar, Bass, Kit, Trumpets, Clarinet, Sax
Tempo: 116

High-energy polka with screaming trumpets and a clarinet "voice". Modulation at the end. Unusual turnarounds. 022
ISRC: US-UAN-11-00218
Bouncy, Bright 2007