Tuba after American bandmaster John Philip Sousa, resembles a hélicon with the bell pointed up (in the original models as the J. W. Pepper prototype and Sousa's concert instruments) and then curved to point forward (as developed by Conn and others). Some ancestors of the tuba, such as the military "bombardon", had unusual valve and bore arrangements compared to modern tubas. During the American Civil War, most brass bands used a branch of the brass family known as "saxhorns", which, by today's standards, have a narrower bore taper than tuba—the same as true cornets and baritones, but distinct from trumpets, euphoniums,
Subcontrabass tuba probably during 1910 or 1911 and was destined for the World Exhibition in New York in 1913 (Green). This tuba is "playable," but two persons are needed: one to operate the valves and one to blow into the mouthpiece. Finally, Dr. Frederick Young plays a King BBb tuba that was converted into a double tuba (in BBb and EEE (natural)) by Dietrich Kleine-Horst (of the Herbert Gronitz Brass Instrument Company in Hamburg, Germany) in 1990. The BBb side is a contrabass tuba, and the EEE side is a subcontrabass tuba. Subcontrabass tuba The subcontrabass tuba is an extension of the