Composer and conductor Gunther Schuller, a frequent guest and collaborator with the Chicago Symphony Orchestra over the course of the last fifty years, died yesterday in Boston. He was 89.

Read more: Remembering Gunther Schuller

Image above: Sir Georg Solti and the composer acknowledge soloist Walfrid Kujala following the world premiere of Schuller’s Concerto for Flute and Orchestra on October 13, 1988.