Emmanuel Music musicians rehearse for Mark Morris Dance Group's performances of "Dido and Aeneas" at the Cutler Majestic Theater in Boston, Massachusetts May 27, 2008. "Dido and Aeneas", featuring choreography by Mark Morris and music by English composer Henry Purcell, premiered in 1989 in Brussels and is one of the CompanyÕs most well-known and acclaimed works. REUTERS/Brian Snyder (UNITED STATES)