Puget Sound Concert Opera’s “La Serva Padrona” comes to Friday Harbor Presbyterian Church, 5 p.m., Saturday, May 14. “La Serva Padrona,” known in English as “The Servant as Mistress” was composed by Giovanni Pergolesi. The 18th century comic opera, about a maid who never works and then marries her master, bridges the baroque and classical era together. Suggested donations are $10 students or seniors and $15 for general admission.