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=USUAN1100174

MacLeod's description:

Genre: Jazz
Length: 4:14
Instruments: Brushed Kit, Trumpet, Bass, Piano

Not sure what this is... Reminds me of a 1940's film... maybe a musical? Jazz combo with Fluglehorn, EP improv in the middle. 014
ISRC: US-UAN-11-00174
Relaxed, Bouncy, Humorous 2006