Introduction
The introduction ( in Latin , introduction ',' Introduction ') is in the music , a short instrumental record , the one law (eg a. Rondo , a fugue , an overture , a concerto - or symphonic movement ) precedes.
The introduction differs from the overture and the prelude in that it does not have a closed form and is not an integral piece.
For opera , the term "introduction" can also be used on the first ensemble piece immediately following the overture. This can be vocals or instrumental music .