The Great Stalacpipe Organ is an electrically actuated litho phone. A litho phone is a musical instrument consisting of a rock or pieces of rock which are struck to produce musical notes. This organ is operated by a custom console that produces the tapping of ancient stalactites of varying sizes with solenoid-actuated rubber mallets in order to produce different tones. The instrument's name was derived from the resemblance of the selected "37" naturally formed stalactites to the pipe work of a traditional pipe organ. There is an organ style keyboard console without the pipes that can actually be played like a regular pipe organ. It was designed and implemented in 1956 over three years by Leland W. Sprinkle inside the Luray Caverns.
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