Morton Feldman (born January 12, 1926, died September 3, 1987) was an American composer. He is best known for his instrumental pieces which are frequently written for unusual groups of instruments, feature isolated, carefully chosen, predominantly quiet sounds, and are often very long. Feldman was born in New York City. He studied piano with Madame Maurina-Press, a pupil of Ferruccio Busoni, and later composition with Wallingford Riegger and Stefan Wolpe. He did not agree with many of the views of these composition teachers, and he spent much of his time simply arguing with them.