Yes clumsy Bear
Started to play the Quartet.
Got music, bass, viola, two violins
And sat on the lawn under the limes,
Captivate your art light.
Of course, you know the fable I. A. Krylov. It is called "Quartet". This word has not the same value. As the name of the interval - quart (about intervals you probably have time to read) - it comes from Latin quartus - fourth.
What is called the word "Quartet"? Read again the lines of the fable: "started to play the Quartet..." Means, first of all, the Quartet is the title of the work. Works multi-part (the first part of which is written, usually in Sonata form) and intended for four - and hence the quartus artists. Most often write quartets for two violins, viola and cello. Krylov meant exactly Quartet: "bass" used to be called cello. It's called string, as it was designed for execution only stringed instruments. String quartets wrote Beethoven, Tchaikovsky, Borodin, Shostakovich and many other composers.
Quartets for the other composition tools are much rarer. For example, a piano - violin, viola, cello and piano. There are quartets for brass instruments.
In the operas were often quartets vocal ensembles, involving four persons in Opera. For example, in the last act of Verdi's "Rigoletto" is a Quartet of Duke, Gilda, Maddalena, Rigoletto.
J. Verdi. "Rigoletto". 3 action.
The Duke Quartet, Maddalena, Gilda and Rigoletto
The participants of the performance of Quartet plays also called Quartet. So, there was one time vocal Quartet sisters Fedorov, who sang for them specially made four-part arrangements of folk songs.
The whole earth is white-white. Play sisters Fedorov
I walked across the meadow. Russian folk song.
Play sisters Fedorov
But it is most common, of course, a string Quartet consisting of two violinists, a violist and a cellist.
The quartets are sometimes the names of great musicians. So, one of the oldest bands in our country Quartet L. Beethoven. Great fame are the Quartet A. P. Borodin, Leningrad Quartet S. I. Taneev. In recent years there has been quartets name S. S. Prokofiev and the name of D. D. Shostakovich.
The Borodin Quartet