Hello! I need help identifying this particular version of Lassus Trombone. My dad was an entertainer for over 40 years in the Southwest Missouri area. He had many characters and pantomimes over the years, many of them set to this version of Lassus Trombone. Sadly he passed away a few weeks ago and we were never able to figure out where he sourced it from. He used it for many years from the early 70's to 90's playing it from an 1/8" reel to reel tape. I thought I maybe had a good lead in the credits of America's Funniest People (youtu.be/90XkIxKUT5g?t=502) when he was featured with this song, but no luck. So that makes me think it's possibly public domain.
I know he also liked to run some of his music at faster speeds so it's also possible that this is speed up. I tried using audio recognition apps (Shazam and SoundHound) at the current speed and slowed down with no luck. Even the almighty YouTube algorithm couldn't recognize it. So please help me find this, it would mean a lot!
Also a side note- if you're from the Southwest Missouri area and grew up in the 70's and 80's, I have a lot of his material that you'll probably fondly remember!