The auto harp is just a collection of crystal glasses with water at different heights. Surely you've rubbed your fingers along the rim of a glass and made 'magic' as a child. Well - this used to be a very popular instrument in the 17th and 18th centuries. Mozart actually wrote his first music for use on the auto harp! Imagine that!
A few summers ago I ran into someone playing some Mozart on the auto harp in Old Town, Alexandria VA on the wharf -it was really magical! I've found this video online of someone playing the autoharp - enjoy! Now THIS is talent!!