Henry Jay Lewis was an American double-bassist and orchestral conductor whose career extended over four decades. A child prodigy, he joined the Los Angeles Philharmonic at age 16, becoming the first African-American instrumentalist in a major symphony orchestra and, later, the first African-American symphony orchestra conductor in the United States. As musical director of the Seventh Army Symphony Orchestra, he supported America's cultural diplomacy initiatives in Europe after World War II.
Marilyn Horne and Henry Lewis in 1961, photo by Carl Van Vechten
Conducting is the art of directing a musical performance, such as an orchestral or choral concert. It has been defined as "the art of directing the simultaneous performance of several players or singers by the use of gesture." The primary duties of the conductor are to interpret the score in a way that reflects the specific indications in that score, set the tempo, ensure correct entries by ensemble members, and "shape" the phrasing where appropriate. Conductors communicate with their musicians primarily through hand gestures, usually with the aid of a baton, and may use other gestures or signals such as facial expression and eye contact. A conductor usually supplements their direction with verbal instructions to their musicians in rehearsal.
Herbert von Karajan conducting in 1941
Giuseppe Verdi conducting his opera Aida in 1881
Leonard Bernstein conducting the Royal Concertgebouw Orchestra in 1985
Conductor's score and batons on a lit, extra-large conductor's music stand