In a program titled, “Songs of the Sybil,” the Gallicantus Renaissance Vocal Ensemble will offer the only existing complete setting of the 12 Sibylline prophecies as composed by Orlande de Lassus, paired with works by the celebrated “Sibyl of the Rhine” Hildegard von Bingen, as well as new compositions by Princeton University professors Dan Trueman and Dmitri Tymoczko. The concert will take place on Sunday, October 11 at 2 p.m. in Richardson Auditorium. General admission is $25 ($10 for students with proof of ID). To order, call (609) 258-9220 or visit www.princetonuniversityconcerts.org.