What is Glass harmonica?
[[File:ThomasBlochHandsGlassharmonica low notes on left and high notes on right.jpg|thumb|A person playing a glass harmonica.]] The '''glass harmonica''' (also called the '''armonica''') is a [[musical instrument]]. It was invented by [[Benjamin Franklin]]. It is made up of a spinning stick with glass bowls around it. The player rubs their fingers on the glass bowls as the instrument spins to make music. Different sizes of bowl make different sounds. [[Category:Musical instruments]] {{music-stub}}