Frederick Martin "Fritz" Reiner (December 19, 1888 – November 15, 1963) was a prominent conductor of opera and symphonic music in the twentieth century. Hungarian born and trained, he emigrated to the United States in 1922, where he rose to prominence as a conductor with several orchestras. He reached the pinnacle of his career while music director of the Chicago Symphony Orchestra in the 1950s and early 1960s.
Reiner's music-making had been largely American-focused since his arrival in Cincinnati. But after the Second World War he began markedly increasing his European activity. When he became music director of the Chicago Symphony Orchestra in 1953 he had an international reputation. By common consent, the ten years that he spent in Chicago mark the pinnacle of his career, and are best-remembered today through the many recordings he made in Chicago's Orchestra Hall for RCA Victor from 1954 to 1963. The first of these—of Ein Heldenleben by Richard Strauss—occurred on March 6, 1954 and was among RCA's first to use stereophonic sound. His last concerts in Chicago took place in the spring of 1963.
He also appeared with members of the Chicago Symphony in a series of telecasts on Chicago's WGN-TV in 1953-54, and a later series of nationally syndicated programs called Music From Chicago. Some of these performances have been issued on DVD. The videos clearly show his stern, disciplined demeanor, but at the conclusion of a piece, Reiner would turn to the audience and smile at them as he bowed.
Reiner was married three times (one of them to a daughter of Etelka Gerster) and had three daughters. His health deteriorated after a heart attack in October 1960. He died in New York City on November 15, 1963, at the age of 74.
Reiner was especially noted as an interpreter of Richard Strauss and Bartók and was often seen as a modernist in his musical taste; he and his compatriot Joseph Szigeti convinced Serge Koussevitzky to commission the Concerto for Orchestra from Bartók. In reality, he had a very wide repertory and was known to admire Mozart's music above all else.
Reiner’s conducting technique was defined by its precision and economy, in the manner of Arthur Nikisch and Arturo Toscanini. It typically employed quite small gestures — it has been said that the beat indicated by the tip of his baton could be contained in the area of a postage stamp — although from the perspective of the players it was extremely expressive. The response he drew from orchestras was one of astonishing richness, brilliance, and clarity of texture. Igor Stravinsky called the Chicago Symphony under Reiner "the most precise and flexible orchestra in the world"; it was more often than not achieved with tactics that bordered on the personally abusive, as Kenneth Morgan documents in 2005 biography of the conductor. Chicago musicians have spoken of Reiner's autocratic methods; trumpeter Adolph Herseth told National Public Radio that Reiner often tested him and other musicians.