what is a glass harmonica?

Answer 1

its an instrument - basically a series of different sized crystal bowls that rotate. you rub your wet finger against the crystal to make a sound, like when you rub a wine glass.

Answer 2

its an instrument - basically a series of different sized crystal bowls that rotate. you rub your wet finger against the crystal to make a sound, like when you rub a wine glass.

Answer 3

Ben Frankland invented it but no one made then for years.
You need a glass blower to make one by hand.