tuba (redirected from Tubas)

tuba (t`bə) [Lat.,=trumpet], valved brass wind musical instrument of wide conical bore. The term tuba is applied rather loosely to any low-pitched brass instrument other than the trombone; such instruments vary in size, and are known by various names. The contrabass tuba, which is most common, plays in the same range as the double bass. The helicon and sousaphone are contrabass tubas used in marching bands; they coil around the player and rest on the left shoulder. The baritone and euphonium are small tubas, mainly band instruments, pitched the same as the trombone. Wagner secured the tuba's place in the orchestra in the mid-19th cent. He called for three differently pitched instruments for his Ring cycle. 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.

Bibliography

See C. Bevan, The Tuba Family (1978).

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tuba

Deep-pitched valved brass instrument with a widely expanding conical bore. Tubas vary in size and pitch. The tubing is coiled in an oblong shape, and the bell points upward or forward. Patented in Berlin in 1835, the tuba displaced the ophicleide to become the foundation of the brass section in the orchestra and in military and brass bands. See also euphonium, sousaphone.

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(networking, protocol)

TUBA - An Internet protocol, described in RFC 1347, RFC 1526 and RFC 1561, and based on the OSI Connectionless Network Protocol (CNLP). TUBA is one of the proposals for Internet Protocol Version 6.