Bombardon

Bombardon 1. the bass bombard; 2. name given by Johann Riedl of Vienna to his 12-keyed bass ophicleide, invented ca. 1820; 3. name given to the 3- or 4-valve bass tuba after C. W. Moritz's patent for a 5-valve tuba was circumvented, shortly after 1835; 4. 32' or 16' bombarde organ stop in the pedal (12). Audsley, George A. The Art of Organ Building. New York, 1905.