Construction and function of the Contrabass tuba - Philipp Dangas

Construction and function of the Contrabass tuba

Graphic for the construction and function of the contrabass tuba can be enlarged. It is Link-Sensitive [Clickable].

Components of the contrabass tuba in small representation

Structurally, the contrabass tuba is basically the same as the bass tuba with the stipulation of larger dimensions corresponding to its deeper sound range. The contrabass tuba is built in two different pitches. As a contrabass tuba in C and slightly larger than this, as a contrabass tuba in Bb. Since it is used in art music down to the lowest range of the contra octave , it must always be equipped with 5 valves. As with the double horn and the tenor bass trombone, the bass tuba in F and the contrabass tuba in Bb can be combined in a single instrument by means of a switching valve. This tuba ensures good intonation in the lower register (the same applies to the higher register ) and is therefore used a lot.

An remarkably fitting sound example of the contrabass tuba [Music by Richard Wagner]
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Key data on the functional principle of the brass instruments
Component/Technology Function
1. Mouthpiece Mouthpieces have traditionally been formed of solid brass.
2. Tube The pitch is determined by the tube length, but also the timbre.
3. Valves Valves are used to change the tube length to allow for chromatic play.
4.  Bell The timbre is also determined. Longer and narrower bells produce a bright sound. Shorter and wider produce a soft sound.
5. Overblowing technique The playing technique that allows the instrument to sound in a higher register by increasing the blowing pressure.