Conductor; born in Boston, Mass. Trained as a violinist in Boston and Berlin, he joined the Boston Symphony (1915--30), first playing violin, then viola. Determined to conduct, he founded his own chamber orchestra, the Boston Sinfonietta, in 1924. In 1929 he launched the Esplanade summer series, free concerts by the Boston Symphony, along the Charles River. In 1930 he took over the Boston Pops Orchestra and for almost a half century he was the most beloved conductor of light-classical music in the U.S.A. Active in promoting music through various mediums, he was also made an honorary fire chief because of his practice of chasing every major fire, day or night, and became a familiar figure to Bostonians at the scene of the fires.