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double bass,bowed stringed musical instrument, the contrabass of the modern orchestral string section. It originated as a double-bass violviol,
family of bowed stringed instruments, the most important ensemble instruments from the 15th to the 17th cent. The viol's early history is indefinite, but it is recognizable in depictions from as early as the 11th cent. During the second half of the 17th cent.
..... Click the link for more information. , an instrument described as early as 1566. A true double-bass violinviolin,
family of stringed musical instruments having wooden bodies whose backs and fronts are slightly convex, the fronts pierced by two f-hole-shaped resonance holes. The instruments of the violin family have been the dominant bowed instruments because of their versatility,
..... Click the link for more information. appeared during the 18th cent. but was rejected as unwieldy and of poor tonal quality. The present double bass is tuned in fourths and usually has a flat back and sloping shoulders but has never attained a definitive form. The bow, the last to give up its convex shape, was long held palm upward like the viol bow, but the violin style is now customary. Indispensable in the orchestra, it also has a place in the dance band and jazz.
(contrabass), a bowed stringed instrument. It is the largest (nearly 2 m long) and lowest-pitched instrument in the string family. It has four strings tuned in fourths and sounds an octave lower than it is notated. There are also three- and five-string double basses. The player normally stands. Primarily an orchestral and ensemble instrument, the double bass is sometimes played as a solo instrument (outstanding virtuosos include G. Bottesini, Italy, 19th century; S. Koussevitzky, Russia, 20th century; and F. Gertovich, USSR).
The variety of a musical instrument that plays in the lowest registers is also known as a contrabass—for example, the contrabass trombone, contrabass tuba, and contrabass balalaika.