The Old Mill Foundation’s entertaining summer concert series continued Saturday night with a performance by the Avanti Trio. As always, guests at the historic Old Mill enjoyed pre-concert refreshments and the opportunity to view the California Art Club’s latest exhibition at the Mill’s gallery. The series’ next concert on the venue’s Pomegranate Patio is on Saturday, Aug. 17, when Jazz! Group 5 visits. To purchase tickets, visit old-mill.org.