- How can you tell which kid on a playground is the child of a trombonist?
He doesn't know how to use the slide, and he can't swing
- What's the difference between a dead trombonist on the road and a dead country singer on the road?
The country singer might have been on the way to a recording session
- How many bass trombonists does it take to change a light bulb?
Only one, but he'll do it loudly
- What's the difference between a bass trombone and a chainsaw?
- How do you improve the aerodynamics of a trombonist's car?
Take the Domino's Pizza sign off the roof