Q: How many keyboardists does it take to screw in a light bulb?
A: One to light a candle and say it's just as good as electric light.
A: None: "I've got a candle that looks just like it."
A: Lightbulbs? C'mon, I got sunlight, fluorescent, candles-anything you want.
A: "Oh, just one. But this bulb won't do. You want to use a 3-way bulb, but if you can afford it, I hear that next month GE will be coming out .... "
A: Only one, but if you wait until next month, Yamaha will have a new model bulb out which is much better.
A: Two: One to screw in the bulb, and one to patch it into the Korg.
A: Two: One to change the bulb and one to say "Yeah, that sounds just like it."

Q: How many kindergarden kids does it take to change a lightbulb?
A: One, two, three... Mummy! can I use my toes?