CARPENTER, JOHN ALDEN ), American composer, was born at Park Ridge (Ill.), on Feb. 28, 1876. He was educated at Harvard university, graduating in 1897, and joined his father in business in Chicago. Subsequently he studied music in Europe under Elgar, and in Chicago under Ziehn. His compositions include Gitanjali, a song-cycle with words by Tagore (1914); Adventures in a Perambulator and Concertino for orch estra and piano (1915) ; a symphony (I 91 7) ; The Birthday of the Infanta, a ballet pantomime, produced by the Chicago Opera Com pany, Dec. 23, 1919; Krazy-Kat, a ballet, produced Dec. 23, 1921; and Skyscrapers, a ballet produced at the Metropolitan Opera House, New York, Feb. 19, 1926, which was also given five times the following season. His published works also include a sonata for violin and piano and a number of songs. As a composer of modern tendencies he has displayed great skill in his handling of the orchestra.