Brass valves and improved keying systems for woodwinds were innovations during which century?

Aristophanes' Lysistrata principally criticizes

A. Greek colonial expansion. B. the Persian Wars. C. the Peloponnesian War. D. the Spartan way of life.

The trio sonata was written on three lines of music, but it required at least ________ performers, because of the basso continuo.

A. three B. five C. four D. two