They are best described as self-cleaning, musical, water-fountain keyboards. Hydraulophones are very similar to woodwinds, but hydraulophones run on incompressible fluid (usually water) rather than compressible fluid (air). Hydraulophones are sometimes called ‘woodwater’ instruments. Hydrolophones have the characteristic of polyphonic embouchure, meaning that the player can dynamically “sculpt” each note by obstructing [...]

The quarter-inch pipes are between 6 and 9 feet long with a diameter of six-and-a-half inches. They produce the most beautiful tones I’ve ever heard, soft and sweet. The entire instrument, tuned to a pentonic scale in D, is about 16 feet tall, weighs 400 pounds and is currently accessible to the public [...]