Opus 7 Vocal Ensemble – Show Us Your Mercy Loren W. Pontén, founder & artistic director Joseph Adam, organ Opus 7 presents a powerful collection of choral music for the Lenten season expressing mercy and hope. Contemplate the solemnity of the season at Seattle's most iconic sacred space with lush romantic works by Mendelssohn, Rheinberger, Georg Schumann, Pizzetti, Szymanowski and Villette; the crystalline, plaintive melodies of Henry Purcell; and American composers William Albright, Gwyneth Walker, and Seattle's Peter Hallock. The central work is Krzysztof Penderecki's Agnus Dei. The Agnus Dei, dedicated to Cardinal Stefan Wyszyński, was written in 1981 as part of his Polish Requiem. The Polish Requiem began as a commission from the trade union Solidarity to memorialize those killed in anti-government protests. COVID Guidelines Proof of vaccination is no longer required for Cathedral events. The CDC and King County Public Health continue to strongly recommend you wear a mask at large indoor events. While not required, we encourage all concert attendees to wear masks while community spread continues. We ask that all audience members be respectful of each other's choices. This policy is subject to change based on Archdiocesan, King County, and Washington State COVID guidelines and regulations.