CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Name badges of the chorus members as they checked in Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) and Annie-B Parsons (choreographer) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) in foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) and Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) in foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annotated score Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) foreground left watches on Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader examining score Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) foreground with Annie-B Parsons (choreographer) behind Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus lead by Annie-B Parsons (choreographer) and Simon Halsey (conductor) up front Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) foreground with Annie-B Parsons (choreographer) behind (right) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Annie-B Parsons (choreographer) discussing the choreography Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) watches on Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and her group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and her group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and her group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and her group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) foreground Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Chorus leader and group Credit: Robert Altman

CHORUS: Choral piece for 1,000 singers, many amateurs rehearse to be performed Lincoln Center

New York, New York - August 8, 2016 : Rehearsal at Baruch College led by Simon Halsey (conductor) in preparation for the massive choral celebration with over 1,000 singers of the 50th anniversary of Mostly Mozart on August 13 at Lincoln Center Seen here : Simon Halsey (conductor) with Annie-B Parsons (choreographer) behind Credit: Robert Altman