What is "glass harp"

n. An instrument made with wine glasses, tuned by putting different amounts of liquid into them. Sound is produced by rubbing one's fingers around the edge of the glasses.

Glass Harp is a rock band formed in Youngstown, Ohio in 1968 consisting of Phil Keaggy, drummer John Sferra and bassist Daniel Pecchio.

A glass harp (also called musical glasses,' singing glasses', angelic organ, verrilion or ghost fiddle) is a musical instrument made of upright wine glasses.

It is played by running moistened or chalked fingers around the rim of the glasses. Each glass is tuned to a different pitch, either by grinding each goblet to the specified pitch, in which case the tuning is permanent, or by filling the glass with water until the desired pitch is achieved.

Glass Harp is the debut album by American rock band Glass Harp. It was released in 1970 on Decca Records. The album was produced by Lewis Merenstein and engineered by Ron Johnsen at Electric Lady Studios.