CZERNY, KARL (179r-1857), Austrian pianist and com poser, was born at Vienna, where he remained throughout his life. His father, who was a teacher of the piano, trained him for that instrument from an early age with such success that he per formed in public at the age of nine, and commenced his own career as a teacher at fourteen. He was brought under the notice of Beethoven, and was his pupil in the sense in which that great master had pupils. He became famous as a teacher of the piano, and among his pupils he numbered Liszt, Theodor Dohler (1814 43) and many others who afterwards became famous. His works, which include every class of composition number nearly a thou sand, but none are as well known as those to which he probably attached least importance, namely his admirable educational studies and exercises which still hold their own with the best.