Question: Frederick Martin "Fritz" Reiner, was a prominent conductor of opera and symphonic music in the twentieth century, conducting is the art of directing a musical performance, such as an orchestral or choral concert, primary duties of the conductor are what?
Sentence (from "Fritz Reiner"): Frederick Martin "Fritz" Reiner (December 19, 1888 – November 15, 1963) was a prominent conductor of opera and symphonic music in the twentieth century.
Relevant evidence: No