"What's the range of a tuba?" joke
What's the range of a tuba? Twenty yards if you've got a good arm!
Why was the ladybird kicked out of the forest? Because she was a litter bug.
A symphony orchestra is performing Beethoven's 9th in the park. It's so windy that the music sheets need to be tied down so they won't blow away.
The tuba players just did their first bit, and they won't need to perform for a while, so they go to the bar across the more...
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.
How many tuba players does it take to change a light bulb? Three! One to hold the bulb and two to drink' till the room spins.