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The Wagner tuba is a narrow-bore tuba with a French-horn mouthpiece. Tubas appeared first in Berlin in the 1820s, soon after the invention of the valve. They were soon accepted into the band and orchestra, displacing the serpent, ophicleide, and other such instruments of poorer tone quality and intonation.
The sousaphone (US: / Ë s uË z É f oÊ n /) is a brass instrument in the same family as the more widely known tuba. Created around 1893 by J.W. Pepper at the direction of American bandleader John Philip Sousa (whom the instrument was then named after), it was designed to be easier to play than the concert tuba while standing or marching, as well as to carry the sound of the instrument above the heads of the band.