Sep 3, 2014 — By мÓÆÂÁùºÏ²Ê¿ª½±Íø News Services — мÓÆÂÁùºÏ²Ê¿ª½±Íø Opera Theater will perform "Die Fledermaus" (The Bat), a Viennese operetta, at 7:30 p.m. April 10-12, and 2 p.m. Sunday, April 13, in Miller Concert Hall, Duerksen Fine Arts Center.