Pianist and composer; born at Warsaw, where he studied piano under Zawadski and composition under Eisner. Going to Vienna he studied under Würfel. In 1835 he went to Paris, where he spent the rest of his life, well-known and admired for his work as concert-player, composer and teacher. He became a firm friend of Chopin, whose style he imitated somewhat. The best of his compositions are some of his etudes, his piano concerto dedicated to Chopin, his thirty-two duos jointly with De Beriot and eight duos jointly with Vieuxtemps. His published works number about three hundred and fifty, mostly for piano.