The main division of a musical, often divided into Act I and Act II.

An orchestral piece at the beginning of a musical that introduces themes from the show.

A musical piece with lyrics and melody that advances the plot or reveals character emotions.

1. A musical piece performed by a single singer or actor.

1. The words of a song.

The dance movements and sequences performed by the dancers.

The clothing worn by actors and dancers in a production.

1. The character or force in opposition to the protagonist.

The way characters change or evolve throughout the musical.

The musicians who play the music for the musical, typically located in a sunken area (the "pit") in front of the stage.