Bass trombone

Bass trombone
Bass trombone with two valves in F and D
Brass instrument
Classification
Hornbostel–Sachs classification423.22
(Sliding aerophone sounded by lip vibration)
DevelopedLate 16th century
Playing range
Related instruments
Musicians

The bass trombone (German: Bassposaune, Italian: trombone basso) is the bass instrument in the trombone family of brass instruments. Modern instruments are pitched in the same B♭ as the tenor trombone but with a larger bore, bell and mouthpiece to facilitate low register playing, and usually two valves to fill in the missing range immediately above the pedal tones.