How long did Greek plays last at festivals such as City Dionysia?

What is the name for the style of singing used Armstrong?

a. Blues singing b. Shout singing c. Scat singing d. Bebop singing

The thrust stage brings the audience and performers: a. closer to the lights and curtains which makes the audience aware of the theatrical elements of a performance

b. into a rounded configuration so that the audience encloses the performer's action. c. into a more intimate performer-audience relationship than does the proscenium theatre. d. into a set where realistic spectacle is made possible.