An incredible roster of musicians gathered at Carnegie Hall in 2009 to play Terry Riley's epic 'In C' — with the complete, but only single-page, score projected overhead. Julien Jourdes/courtesy of Carnegie Hall Archive hide caption

itoggle caption Julien Jourdes/courtesy of Carnegie Hall Archive

The Nashville Symphony with Music Director Giancarlo Guerrero (center) during Spring For Music at Carnegie Hall in Manhattan, New York on May 12, 2012. Melanie Burford/NPR hide caption

itoggle caption Melanie Burford/NPR

Cellist Pablo Casals, violinist Fritz Kreisler, pianist Harold Bauer and conductor Walter Damrosch in 1904. Blaine Littell Collection of Walter Damrosch Memorabilia / Carnegie Hall Archives hide caption

itoggle caption Blaine Littell Collection of Walter Damrosch Memorabilia / Carnegie Hall Archives