Singers, chorus perform March 11 The University Singers and Varsity Mens Chorus will perform at 7:30 p.m. March 11 at St. Cecilias Cathedral, 701 N. 40th St., Omaha. Peter Eklund will direct these two vocal ensembles in Antonio Caldaras 16-part Crucifixus and double-choir Ave Maria by Franz Biebl. This performance is free and open to the public. For more information, call the UNL School of Music at 472-6865 or visit www.unl.edu/music.