This word, composed of French entre (between) and 'acte (act, act), means the interval between the action in the play, between the branches of the concert.
However, in addition to such an interval, during which you can leave the room, to exchange experiences, there are musical intervals. They-and we are interested in. Imagine that you are at the Opera is N. Rimsky-Korsakov's "the legend of the invisible city of Kitezh and the maiden Fevronia. Is the first scene of the third act. On the stage area in the Great Kitezh. Gathered her people learns the terrible news: the city is coming Tatar army. Prince Vsevolod assembles a team to perform to meet the enemy. The curtain falls.
However, the orchestra does not stop. He tells what happened next. Nastroenny and at the same time, his sinister sound. Quietly, quietly, as if from afar, there is a rhythm furious races. This rush Tatars, sweeping away all in its path. Closer they are, the louder it sounds wild, sinister theme... But I heard simple and expansive melody - the song of the Russian squad. Now all intertwined, intermingled in music: audible immediately and unchanging rhythm racing, and Russian song, and Tatar, trying to drown, kill her... And the trainees understand that the Russian team was faced with the Tartar army, began the fight for life. Desperately fought the Russians, but the Tatars were countless more. All the men remained on the battlefield, all died the death of brave, preferring death to slavery.
Nicholas Roerich. "The battle at Kerzhenets"
Doesn't sound more expansive song disappears, sprayed a clear rhythm, only some, like "tired" scraps Tatar theme-"the winner" alternate with one another...
Again opened the curtain. On the stage of the Tatar camp. This second picture of the third act of the Opera was associated with earlier symphonic interlude "the Battle at Kerzhenets".
N. Rimsky-Korsakov. Orchestral picture "the Battle at Kerzhenets"
from the Opera "the legend of the invisible city of Kitezh and the maiden Fevroniya"
Here is another example. Is Opera G. Bizet's "Carmen". In her every action is preceded by a musical interlude. Intermission by the third act draws peace and quiet slumbering mountains. The curtain rises and the audience mountain landscape, subtly reflected in what had just music. Intermission to the fourth act, cheerful, colorful, rich, energetic rhythms. He enters into the atmosphere of the folk festival, which will be tragic denouement of the Opera.
Georges Bizet. Intermission to the 4th act of the Opera "Carmen