Pit orchestra

Musical ensemble accompanying a theater performance

A pit orchestra is a type of orchestra that accompanies performers in musicals, operas, ballets, and other shows involving music. The term was also used for orchestras accompanying silent movies when more than a piano was used. In performances of operas and ballets, the pit orchestra is typically similar in size to a symphony orchestra, though it may contain smaller string and brass sections, depending upon the piece. Such orchestras may vary in size from approximately 30 musicians to as many as 90–100 musicians. However, because of financial, spatial, and volume concerns, current musical theatre pit orchestras are considerably smaller.

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