Valve trombone

The valve trombone is a brass instrument in the trombone family that has a set of valves to vary the pitch instead of (or in addition to) a slide. Although it has been built in sizes from alto to contrabass, it is the tenor valve trombone pitched in B which has seen the most widespread use. The most common valve trombone has three piston valves, and plays just like a trumpet but an octave lower. They are built in either short or long form.

Valve trombone
Valve (tenor) trombone in B♭
Brass instrument
Classification
Hornbostel–Sachs classification423.233.2
(Valved aerophone sounded by lip vibration with cylindrical bore longer than 2 metres)
DevelopedMid 19th century
Related instruments
Musicians
Builders
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