Lux Aeterna celebrates the persistence of light through times of darkness. Trinity’s semiprofessional choir, Downtown Voices, presents this illuminating spring concert—the ensemble’s first in-person performance since early 2020—performing masterpiece requiems of solace and beauty by Duruflé and Fauré. Online and in-person at St. Paul’s Chapel. Reservations required. Downtown Voices; NOVUS NY; Stephen Sands, conductor.