The Crown City String Quartet will present a matinee concert at 3 p.m., Sun., Oct. 18, in the Church of the Good Shepherd Chapel. Quartet members are Kevin Kumar, violin; Isabelle Senger, violin; Carrie Holzman-Little, viola; and Dane Little, cello. They will play the Mozart “Dissonance” String Quartet K.465 and the Borodin String Quartet No. 2. The concert is one in a series of “Music in Sacred Spaces” at Church of the Good Shepherd, United Methodist, 400 W. Duarte Rd., Arcadia. Requested donations of $15 (students with I.D., $10) will be taken at the door. For more information, call (626) 447-2181 or visit www.cgsum.org.