How is tape music different from musique concrète?

Instead of using mathematical devices to unify the image in The Boating Party (fig. 3.28), Pierre-Auguste Renoir employed __________

A. color and the objects in the scene to link groups of people B. linear perspective to organize the space C. vertical and horizontal lines to form a grid D. high realism to clarify the forms

In Verdi's Aida, which character helps Aida and Radamès escape from the tomb where they have been buried alive?

A. Aida and Radamès are not saved. B. Amonasro C. Amneris D. The Pharaoh