German expressionism influenced the plays of

The musical trope Quem queritis ("Whom do you seek?") played an important role in what event or process?

a. the development of solmization techniques b. the codification of Gregorian chant under Charlemagne c. the origins of the earliest Church dramas d. the banning of instrumental music in the medieval Church

Which of these artists appealed most directly to a middle-class, urban public with a large part of his work?

a. Diego Velazquez b. Peter Paul Rubens c. Claudio Monteverdi d. J. S. Bach