A small musical instrument with a series of graduated metal reeds that vibrate and produce tones when air is blown or sucked across them. It is played by blues musicians and small children.

Also, a musical instrument consisting of a conveniently arranged series of graduated glasses from which tones are produced by rubbing the edges with a wet finger. (Well, its proper name is the "glass harmonica"...but close enough, damn it!) Playboy magnate Hugh Hefner and actress Gwyneth Paltrow are both harmonica virtuosoes--virtuosi--whatever.

And finally, a percussion instrument which consists of metal or glass strips which are struck with small mallets. This instrument was invented by Mary, Queen of Scots--and then stolen by the damned Spaniards!