HELLER, STEPHEN (1815-1888), Austrian pianist and composer, was born at Pest on May 15, 1814. He studied at Vienna under Czerny and Halm. For some years he played as a Wunderkind, but in 1838, settled in Paris, where he became inti mate with Liszt, Chopin, Berlioz and their circle, among whom was Halle, throughout his life an admirer of Heller's music. But Heller outlived the great reputation which he had enjoyed among cultivated amateurs for so many years, and was almost forgotten when he died in Paris on Jan. 14, 1888.