Walter Howard "Hod" O'Brien (January 19, 1936 in Chicago – November 20, 2016) was an American jazz pianist. O'Brien attended The Hotchkiss School and then studied at the Oberlin Conservatory and at the Manhattan School of Music (1954–57). He began playing professionally in 1950, and substituted for Randy Weston in 1955. He led his own group in Lenox, Massachusetts during 1956–57, then joined Oscar Pettiford in 1957–58, and J.R. Monterose/Elvin Jones in 1958–59. Read more on Last.fm