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 "Conducting"): A conductor's directions will almost invariably be supplemented or reinforced by verbal instructions or suggestions to their musicians in rehearsal prior to a performance.
Relevant evidence: No