String quintet

A string quintet is a musical composition for five string players. As an extension to the string quartet (two violins, a viola, and a cello), a string quintet includes a fifth string instrument, usually a second viola (a so-called "viola quintet") or a second cello (a "cello quintet"), or occasionally a double bass.

Notable examples of classic "viola quintets", in four movement form include those of Wolfgang Amadeus Mozart. Other examples were written by composers including Johannes Brahms and Felix Mendelssohn.

A famous "cello quintet" is Franz Schubert's Quintet in C major. Antonín Dvořák's Quintet Op. 77 uses a double bass, and Mozart's famous Eine kleine Nachtmusik may be performed with this instrumentation (the double bass being optional).

Alternative additions include clarinet or piano (see clarinet quintet, piano quintet); and other closely related chamber music genres include the string quartet (much more common), the string trio, and the string sextet. A more unusual form of string quintet is the violin quintet composed of 3 violins, a viola and a cello (thus a string quartet with an additional violin).

The term string quintet may refer to a group of five players that performs such works. The ensemble was standard in 17th century Italy and can be seen as early as 1607 in Claudio Monteverdi's opera, L'Orfeo. It can also be applied to the standard five-part orchestral string section: first violins, second violins, violas, cellos, and double basses.

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