A string quartet in performance. From left to right - violin 1, violin 2, cello, viola
Inclassical music, one of the most common combinations of four instruments inchamber music is the string quartet.[3] String quartets most often consist of twoviolins, aviola, and acello. The particular choice and number of instruments derives from the registers of the human voice:soprano,alto,tenor andbass (SATB). In the string quartet, two violins play the soprano and alto vocal registers, the viola plays the tenor register and the cello plays the bass register.
Less often, string quartets are written for other combinations of the standard string ensemble. These include quartets for one violin, two violas, and one cello, notably byCarl Stamitz (6 compositions) and others; and for one violin, one viola, and two cellos, byJohann Georg Albrechtsberger and others.
Wind quartets are scored either the same as a string quartet with thewind instrument replacing the first violin (i.e. scored for wind, violin, viola and cello) or are groups of four wind instruments. Among the latter, the SATB formatwoodwind quartet offlute,oboe, clarinet, andbassoon is relatively common.
Compositions for four singers have been written for quartetsa cappella; accompanied by instruments, such as a piano; and accompanied by larger vocal forces, such as achoir. Brahms and Schubert wrote numerous pieces for four voices that were once popular in private salons, although they are seldom performed today. Vocal quartets also feature within larger classical compositions, such asopera, choral works, andsymphonic compositions. The final movement ofBeethoven's Ninth Symphony andGiuseppe Verdi'sMessa da Requiem are two examples of renowned concert works that include vocal quartets.
Typically, a vocal quartet is composed of:
Soprano, alto (ormezzo-soprano), tenor, and bass (orbaritone), for mixed ensembles; or
1st tenor, 2nd tenor, baritone, and bass, for male groups; or
1st soprano, 2nd soprano, mezzo-soprano, andcontralto, for female groups; or
Tenor, lead, baritone, and bass, forbarbershop style (both male and female).
Thebaroque quartet is a form of music composition similar to thetrio sonata, but with fourmusic parts performed by three solo melodic instruments andbasso continuo. The solo instruments could bestrings or wind instruments.
Quartets are popular injazz andjazz fusion music. Jazz quartet ensembles are often composed of ahorn, classically clarinet (orsaxophone,trumpet, etc.), a chordal instrument (e.g.,electric guitar, piano,Hammond organ,vibraphone, etc.), a bass instrument (e.g.,double bass,tuba orbass guitar) and adrum kit. This configuration is sometimes modified by using a second horn replacing the chordal instrument, such as a trumpet and saxophone with string bass and drum kit, or by using two chordal instruments (e.g., piano and electric guitar).
The quartet lineup is also very common inpop androck music. A standard quartet formation in pop and rock music is an ensemble typically consisting of avocalist, an electric guitar, a bass guitar, and a drum kit. This configuration is sometimes modified so that the vocalist also plays guitar, or sometimes akeyboard instrument (e.g.,organ, piano,synthesizer) or soloing instrument (e.g., saxophone) may be used.[citation needed]
In the 20th century Westernpopular music, the term "vocal quartet" usually refers to ensembles of four singers of the same gender. This is particularly common forbarbershop quartets andGospel quartets.
Style Quartet fromSaint Petersburg: • Alexander Smertin, artistic director, bayan, • Alexander Barbolin, Prima Balalaika, • Alexey Busin, Viola Balalaika, • Evgeny Redkin, Contrabass Balalaika.
ARussian folk-instrument quartet commonly consists of abayan, a primabalalaika, a prima or altodomra, and a contrabass balalaika (e.g., Quartet Moskovskaya Balalaika). Configurations without a bayan include a prima domra, a prima balalaika, an alto domra, and a bass balalaika (Quartet Skaz); or two prima domras, a prima balalaika, and a bass balalaika.
Allen, Ray.Singing in the Spirit: African-American Sacred Quartets in New York City, in series,Publication[s] of the American Folklore Society: New Series. Philadelphia, Penn.: University of Pennsylvania Press, 1991. xx,[2], 268 p., ill. with b&w photos.ISBN0-8122-1331-9 pbk.