At just about twice the length of Wagner's Ring cycle, and requiring extraordinary performing forces (including four helicopters flying over the theater in one opera) it's probably safe to call LICHT the largest musical piece ever executed. The cycle follows the interactions of three archetypes -- Eve, Lucifer, and the archangel Michael -- and each opera is devoted to one day of the week. "DIENSTAG" (Tuesday), the shortest, lasts a mere two and a half hours; "SONTAG" (Sunday), the longest, clocks in at just under five hours.