Diagonal lines are often used to _______________

The Ara Pacis was constructed under

a. Augustus. b. Julius Caesar. c. Trajan. d. Nero. e. Constantine.

At the double bars at the end of the first vocal solo, what is to happen in actual performance?

a) the movement should come to an end b) the soloist should improvise recitativo semplice c) the soloist should exit the stage d) a wholesale repeat of the opening A section; this is frequently known as the da capo