GLASS ON THE SET OF THE HOURS, 2002. PHOTO: REX USA/MOVIESTORE COLLECTION/REX.

CHUCK CLOSE'S PHIL, 2001.DAGUERREOTYPE. © CHUCK CLOSE, COURTESY PACE GALLERY.

 GLASS AND PATTI SMITH PERFORMING "THE POET SPEAKS, AN HOMAGE TO ALLEN GINSBERG" IN NYC, 2012. PHOTO: STEPHANIE BERGER.

WITH LOU REED PERFORMING ON STAGE, 2012. PHOTO: DANA YAVIN/ THE HELL GATE/CORBIS.

GLASS PERFORMING AT THE TIBET HOUSE 16th-ANNUAL BENEFIT CONCERT IN NEW YORK, 2006. PHOTO: SCOTT WINTROW/GETTY IMAGES.

RICHARD GERE, LAURIE ANDERSON, GLASS, SUZANNE VEGA, AND SPALDING GRAY, 1988. PHOTO: LYNN GOLDSMITH/CORBIS.

GLASS PLAYING HIS KEYBOARD. PHOTO: LYNN GOLDSMITH/CORBIS.

WITH NICO MUHLY.

GLASS AND ROBERT WILSON’S OPERA, EINSTEIN ON THE BEACH, FRANCE, 2012. PHOTO: LUCIE JANSCH.

WITH LAURIE ANDERSON IN NEW YORK, 1985. PHOTO: YVONNE HEMSEY/ GETTY IMAGES.

PERFORMANCE OF EINSTEIN ON THE BEACH, ANN ARBOR, MICHIGAN, 2012. PHOTO: LUCIE JANSCH.