Here's a few more:
What's the difference between a trumpet and a chain saw?
Vibrato, though you can minimize this difference by holding the chain saw very still.
What is a gentleman?
Somebody who knows how to play the trumpet, but doesn't.
How many trumpets does it take to change a lightbulb?
Just one, but he'll do it too loudly.
What's the difference between trumpet players and government bonds?
Government bonds eventually mature and earn money
How to trumpet players traditionally greet each other?
"Hi. Nice to meet you. I'm better than you."
How do you know when a trumpet player is at your door?
The doorbell shrieks!
Why can't a gorilla play trumpet?
He's too sensitive.
What did little Johnny's mother tell him when he said "I want to be a trumpet player when I grow up?"
"But Johnny, you can't do both."
What would a trumpet player do if he won a million dollars?
Continue to play gigs until the money ran out.
Why did the chicken cross the road?
To get away from the trumpet players.
How do you improve the aerodynamics of a trumpeter's car?
Take the Domino's Pizza sign off the roof.
What do you call a lead trumpet player with half a brain?
Gifted.
What's the first thing a trumpet player says at work?
"Would you like fries with that?"
