To begin each of the play’s acts, the stage manager sets the scene and

The answer is "introduce the play with stage directions to the audience". The Stage Manager is the main character of "Our Town" play written by Thornton Wilder in 1938 about a town named Grover's Corner. This play is a metatheatrical play where there is an interaction between the character of the play and the audience.

1.) frame story2.)narrative interruption  3.)internal rhyme 

Bi think might be wrong