Thursday, November 29, 2007

Double Bass




The Double Bass

The double bass (also known as the contrabass, string bass, upright bass, bull fiddle, or simply bass) is the largest and lowest pitched bowed string instrument used in the modern symphony orchestra. It is used extensively in Western classical music as a standard member of the string section of symphony orchestras and smaller string ensembles. In addition, it is used in other genres such as jazz, blues, rock and roll, rockabilly, psychobilly, and bluegrass. Like many other string instruments, the double bass is played either with a bow (arco) or by plucking the strings (pizzicato).

The double bass is generally (possibly mistakenly) regarded as the only modern descendant of the viola da gamba family of instruments, a family which originated in Europe in the 15th century, and as such it has been described as a "bass viol." Before the 20th century many double basses had only three strings, in contrast to the five to six strings typical of instruments in the viola da gamba family or the four strings of instruments in the violin family. Some existing instruments, such as those by Gasparo da Salò, were converted from sixteenth-century six-string contrabass violoni.

The double bass's proportions are dissimilar to those of the violin and cello; for example, it is deeper (the distance from top to back is proportionally much greater than the violin). In addition, while the violin has bulging shoulders, most double basses have shoulders carved with a more acute slope, like members of the viola da gamba family. Many very old double basses have had their shoulders cut or sloped to aid playing with modern techniques. Before these modifications, the design of their shoulders was closer to instruments of the violin family.

The double bass is the only modern bowed string instrument that is usually tuned in fourths (like viols), rather than fifths (see Tuning, below). The issue of the instrument's exact lineage is still a matter of some debate, and the supposition that the double bass is a direct descendant of the viola da gamba family is an issue that has not been entirely resolved.

In his A New History of the Double Bass, Paul Brun asserts, with many references, that the double bass has origins as the true bass of the violin family. He states that, while the exterior of the double bass may resemble the viola da gamba, the internal construction of the double bass is nearly identical to that of other instruments in the violin family, and is very different from the internal structure of viols

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