Which of the following structures demonstrates the Roman use of round arches and arcades?

What best describes the cantatas of J. S. Bach?

a. were usually performed in the courts of German nobles b. adopted the musical form of concerto grosso c. served as an important part of Lutheran church worship d. marked the origin of baroque opera in Germany

An "a capella" chorus __________

a) can have "mixed" voices of men and women b) is always performed in a chapel c) uses organ accompaniment d) can only be sung by men