The Aspen Music Festival's summer season ends on a devilish note on Sunday afternoon, when "The Damnation of Faust" is presented at 4pm. The work, composed by Hector Berlioz, is rarely performed because of the enormous orchestra, chorus and soloists required. So this is perhaps a once-in-a-lifetime opportunity to hear this masterwork of composition, pacing and drama. Guest vocal soloists include Sasha Cooke (Marguerite), Bryan Hymel (Faust) and John Relyea (as Mephistopheles). Tickets at aspenmusicfestival.com.