Microtonal Glass Organ
The glass organ is a set of wine glasses, brandy snifters, and trifle bowls tuned to various pitches and arranged on a stand so that they can be played without tipping over. Sometimes this instrument is called the Singing Glasses. Generally the rims of the glasses are rubbed with a wet finger producing a clear singing tone. The glasses can also be bowed or struck (lightly!) with small sticks. I almost exclusively play them with wet fingers. The Glass Harmonicon is a different but similar instrument.
www.organicdesign.org/peterson/glass_organ/inde...