Since emigrating from Cuba in 1980, percussionist and singer Orlando “Puntilla” Rios has performed rhumba-derived rhythms with Latin stars like Celia Cruz and Tito Puente. Yet his primary acclaim has resulted from his role in bringing the secretive music and dance of Santería to the attention of the general public. Merging West African Yoruba and Spanish Catholic rituals and beliefs, Santería ceremonies involve polyrhythmic drumming and call-and-response chanting devoted to a pantheon of Yoruba deities and Catholic saints. A pre-concert seminar with Georgetown University Afro-Cuban religion specialist Joseph Murphy will be held at 6:30 p.m., followed by the concert at 8 p.m. at the University of Maryland’s Conference Center, University Blvd. & Adelphi Rd., College Park. $9-17. (301) 403-4240. (SK)