On a White House tape dated August 9, 1971, Chief of Staff H. R. Haldeman briefs President Richard Nixon in the Oval Office on the opening of The John F. Kennedy Center for the Performing Arts and the premiere of Leonard Bernstein's MASS, which he describes as "a sort of everything's-gone-wrong kind of thing." He recommends that the president not attend the opening because of MASS's political themes. Tape 557, Part 2 (557b) Date: August 9, 1971 Time: 8:52 am - 11:47 am Location: Oval Office Cour