Harold David Rosenthal OBE (30 September 1917 โ 19 March 1987) was an English music critic, writer, lecturer, and broadcaster about opera. Originally a schoolmaster, he became drawn to music, particularly opera, and began working on musical publications. On the foundation of Opera magazine in London in 1950, Rosenthal was assistant editor, and became editor in 1953, retaining the post until 1986.