In September of 2001, the American composer Elliott Carter was just a few months shy of his 93rd birthday, but still busy composing new works both large and small. On today’s date that year, Carter’s Cello Concerto received its premiere in Chicago with cellist Yo-Yo Ma and Daniel Barenboim conducting the Chicago Symphony. Now, Carter’s music is technically challenging for performers, and its complexity can make it equally challenging for audiences, especially at first hearing. Despite all that, Carter’s comments on his music were usually quite straightforward: “In this score I have tried to find meaningful, personal ways of revealing the cello's vast array of wonderful possibilities,” he wrote. “My Concerto is introduced by the soloist alone, playing a frequently interrupted cantilena that presents ideas later to be expanded into movements.” A month after its premiere, Ma, Barenboim, and the Chicago Symphony brought the new work to Carnegie Hall, and The New York Times reviewer Anthony Tommasini wrote: “For all its complexities … the cello part has a rhapsodic, improvisatory quality …. At its conclusion, when Mr. Carter, who is 92, climbed the steps to the stage with a cane to steady him, he received a prolonged standing ovation.”