Bill Marx (pianist)

William Woollcott Marx is an American pianist, arranger, and composer. He is the adopted son of actors Harpo Marx and Susan Fleming. Marx's compositions include concertos for alto saxophone, flute, harp, piano, and violin. He also composed symphonies and scores for films, including the score for the film Weekend Pass (1984). As a performer, Marx has played in jazz clubs, lounges, and theaters. In the late 1980s, Marx and harpist Carrol McLaughlin toured the United States, giving performances and promoting Harpo Speaks, his father's autobiography.