Patch, May 15, 2011 — Under the direction of senior Kaitlin Donnelly of Winnetka, the 10-member a capella group, “Microscope,” will perform a number of their competition pieces, including Shir Ha-Shirim  by Yehudi Wyner and Faith is the Bird That Feels the Light by Elizabeth Alexander, which earned the group a Gold rating award at the National Heritage Festival competition. The combined choirs and orchestra will end the evening with Adiemus,  from Songs of Sanctuary by Karl Jenkins.