A unique instrument invented by Richard Waters in the late 1960s in California. There are a variety of styles available, each with various unique physical shape, structural and and tonal differences, but the basic design is a hollow metal chamber with a tall neck, ringed by a large number of long metal tines, bars or strips all pointing upward and cut to various lengths for different pitches. The chamber is designed to be filled with water, but sand, beads or other materials can all create interesting results as well. The instrument is played by bowing or striking the tines individually or in a glissando sweep, while tilting and turning the body to shift the water and create strange undulating, bending, warping pitches and harmonic modulations. The sound it produces is somewhat similar to whale calls.