B flat jokes
Why is a wet pavement like playing music?
If you don't C sharp, you'll B flat.
What did music tell the pancakes? -- B flat.
You need to play a B flat, not a C sharp, you just got band!
Roses are red, violets are black. Why is your chest as flat as your back?
Don't pick flat chests because they will turn their backs on you twice.
How do you cover 12 holes with one hole?
Take a flute and shove it up your ass.
Show me a piano falling down a mineshaft, and I’ll show you A-flat minor.