Elliott Carter (December 11, 1908 - November 5, 2012) was an American composer. He is one of the most important composers of classical music of his time. He experimented with new ideas of composition. He lived to be 103 years old and continued composing all his life. He recently composed a piece called "Interventions for Piano and Orchestra" which was given its first performance in the Symphony Hall, Boston where it was played by the Boston Symphony Orchestra conducted by James Levine with the pianist Daniel Barenboim as soloist. The same players played it again a week later on 11 December 2008 in the Carnegie Hall, New York to celebrate Carter's 100th birthday.