Ailyn Pérez’s recent performance at San Francisco’s Stern Grove Festival, which was presented along with San Francisco Opera, drew raves from both audiences and critics, piquing interest for the Merola alumna’s return to the City by the Bay in June when she sings Violetta in La Traviata with San Francisco Opera. The San Francisco Chronicle gave the performance a wonderful review, saying that  the “two big numbers from Act 1 of Traviata amounted to a tantalizing advertisement for June’s performances…And late in the program, Pérez probed deeply into the emotional layers of “Come in quest’ora bruna” from “Simon Boccanegra.”