MASS (formally, "MASS: A Theatre Piece for Singers, Players, and Dancers") is a musical theatre work composed by Leonard Bernstein with text by Bernstein and additional text and lyrics by Stephen Schwartz. Commissioned by Jacqueline Kennedy, it premiered on September 8, 1971, conducted by Maurice Peress. The performance was part of the opening of the John F. Kennedy Center for the Performing Arts in Washington, D.C. Mass premiered in Europe in 1973, with John Mauceri conducting the Yale Symphony Orchestra in Vienna.

Date of composition 1971
Premiered 1971, September 8th in Washington, DC, United States
Type Incidental music
Instruments Orchestra
Chorus/Choir
Autotranslations beta Leonard Bernstein: MASS: A Theatre Piece for Singers, Players, and Dancers
Leonard Bernstein: MASS: A Theatre Piece for Singers, Players, and Dancers
Leonard Bernstein: MASS: A Theatre Piece for Singers, Players, and Dancers