How many soundmen does it take to change a light bulb? One, two, three, one, two, three. Why do bagpipers walk when they play? To get away from the noise. How does a soprano change a light bulb? She just holds it and the world revolves around her.

What's the difference between a soprano and the P.L.O.? You can negotiate with the P.L.O. What do violinists use for birth control? Their personalities.