Theater orchestras play a variety of music, including overtures, entr'actes, and incidental music. Overtures are pieces of music that are played at the beginning of a production, and entr'actes are pieces of music that are played between acts. Incidental music is music that is played throughout the production, and it can be used to set the mood or create a specific atmosphere.
Theater orchestras are an important part of the theater experience. They provide the music that helps to tell the story and create a memorable experience for the audience.