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Georges C. Mager (1885–1950) was a French musician, and principal trumpet with theBoston Symphony Orchestra from 1919 until his death in 1950. He was a renowned trumpeter in Paris before the First World War, playing at the Paris Opera, Concerts Lamoureux, and the Concerts of the Society of the Conservatory. He also had an alternate career as a singer in the duo with his wife Claire, a well-known soprano, and had hoped for an operatic career. After serving in the French army during the war he came to America as flugelhorn soloist with the Garde Republicaine Band and was engaged to play in the Boston Symphony, first as a violist, since there was no vacancy for trumpet, sharing a stand withArthur Fiedler. He assumed the first trumpet position in 1920. Trained in France, he was a student ofJ. Mellet (a student ofJean-Baptiste Arban) at theParis Conservatory. He was an advocate of use of the C trumpet as an orchestral instrument and had great influence on its development and acceptance in America, working most notably withVincent Bach.^[1]

He also was the first trumpeter in America to play Bach's Brandenburg Concerto in the original high tessitura. Mager was on the faculty of theNew England Conservatory, and was a teacher to some of the most influential trumpeters of the mid-twentieth century, includingAdolph Herseth (who became principal trumpet of theChicago Symphony Orchestra),Roger Voisin (who replaced Mager as principal trumpet of theBoston Symphony Orchestra in 1950,Bernard Adelstein (who became principal trumpet of theCleveland Orchestra),Irving Sarin (who became principal trumpet of thePittsburgh Symphony Orchestra and respected teacher in his own right), andRenold Schilke (who joined the trumpet section of the Chicago Symphony Orchestra and later became an important trumpet maker). He was also teacher to jazz trumpeterLeon Merian.

Mager also made important contributions to the trumpet literature through several editions of French solo works, including Guillaume Balay'sPetite Piece Concertante,Henri Dallier'sFete Joyeuse, andGeorges Hue'sSolo De Concert. These are found in "Nine Solos de Concert" published by Southern Music Co (formerly Andraud).

• 1885 births
• 1950 deaths
• French classical trumpeters
• French male trumpeters
• Conservatoire de Paris alumni
• French music educators
• 20th-century French trumpeters
• 20th-century French male musicians
• 20th-century French classical musicians
• Players of the Boston Symphony Orchestra

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