Male a cappella group Cordus Mundi brings "A Cordus Collection" to Holy Spirit Episcopal Church in Harleysville, PA on Saturday, May 12 @ 7:30 p.m. Conceived as a fund-raiser to benefit the Holy Spirit Choir, the program includes music from Casals, Betinis, Chesnokov, Powell, Joel, Dowland, Chatman, Lennon & McCartney, and more. Tickets are $15.