Symphony

A symphony is an extended composition usually for orchestra and usually comprising four

A symphony is an extended composition usually for orchestra and usually comprising four movements.

The word symphony is derived from the Greek Συμφωνία, a combination of syn- ('συν', with, together) and phone ('φωνή', sound, sounding), by way of the Latin symphonia. The term was used by the Greeks, firstly to denote the general conception of concord, both between successive sounds and in the unison of simultaneous sounds; secondly, in the special sense of concordant pairs of successive sounds (i.e. the "perfect intervals" of modern music; the 4th, 5th and octave); and thirdly as dealing with the concord of the octave, thus meaning the art of singing in octaves, as opposed to singing and playing in unison. In Roman times the word appears in the general sense which still survives in poetry, that is, as harmonious concourse of voices and instruments. It also appears to mean a concert. In the Gospel of Luke, chapter xv verse 25, it is distinguished from χορῶν, and the passage is appropriately translated in the English Bible as "music and dancing." Polybius and others seem to use it as the name of a musical instrument.