sousaphone

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sousaphone Largest brass musical instrument of the tuba family. It was introduced by John Sousa to fortify the bass section of US military bands.

sousaphone

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sousaphone. Amer. helical form of bass tuba made to circle the player's body, with a large bell turned up through 2 right angles to face forward and terminating in a flange 2′ wide. Made first in 1898 for Sousa's band, the earliest model having bell which opened directly upward. New version dates from 1908. Also used in jazz.