TOEFL Listening: ETS-TOEFL听力机经 - ZA3PY61YYQ1CGKM1P$

What does the professor say about Parisina chanson? A. The songs contained more vocal parts than other genres of music did B. The songs required one performer to serve as the conductor of the group C. The songs had all the singers start at the same time D. The songs begin with each vocal part singing the same rhythm