American Composers Orchestra Title: Orchestra Underground WORLD PREMIERE of Lukas Ligeti's LABYRINTH OF CLOUDS WORLD PREMIERE of Derek Bermel's A SHOUT, A WHISPER, AND A TRACE U.S. PREMIERE of Thomas Larcher's BOSE ZELLEN ("MALIGNANT CELLS") NEW YORK PREMIERE of Robert Beaser's GUITAR CONCERTO symphony orchestra performance 2009-05-01T19:30:00