The bell passes the musician's head either on the left or the right, depending among other things on the type of valves the instrument has: Périnet valves and rotary valves are equally common. There is also a great variety of sizes, bore profiles and valve mechanisms. The long tubes and oversized bell were really only meant for show. The tubing ranged in length from 3.6 m to 17 m. The instrument was wrapped around the shoulder for the purposes of marching and was especially well-suited to playing in the open air thanks to its tremendous volume. The sousaphone was invented by the American composer John Philip Sousa and modeled on the helicon, the first one being made in 1908. It is rarely asked for in symphony orchestras.Ĭontrabass tubas are basically made in two different forms: the tuba form and the spiral form. It is used primarily in opera orchestras and in brass and military bands. The contrabass tuba is currently made in two tunings: C and Bb. On instruments with six valves: 5th valve wide whole step 6th valve wide half step Valves: Five valves (lowering pitch by 1, ½, 1½ steps, fourth, fifth).Bore: Very wide, inner diameter 19-21 mm.Tubing: Length 540 cm, conical along entire length.Material: Brass, gold brass, nickel silver, gold lacquer.Classification: Aerophone, lip-vibrated instrument, brass wind instrument.Italian: tuba contrabassa in Si bemolle.
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