Spring Choral Concert Claremont Chamber Choir and Claremont Treble Singers. Tzu-Han Ann Chen and Charles W. Kamm, co-directors. Works by Ivo Antonioni, Maddalena Casulana, Joseph Gregorio, Carlos Guastavino, Darius Lim, Stephen Paulus, Arvo Pärt, Marie-Claire Saindon, Tracy Wong, and others. Garrison Theater, 241 E. 10th Street, Claremont