Silversmith's Corner is a lovely pocket park in downtown Southold. Summer Wednesdays the town hosts free concerts starting at 7:30. If the weather's poor, the concert moves indoors: First Presbyterian Church, 53100 Route 25, (Main Road), Southold. Please bring a lawn chair, blanket, picnic – Admission is free, but donations are gratefully accepted. This summer's line up is: June 26: Gene Casey and The Lone Sharks July 3: Lois Ross & The North Fork Chorale July 10: Darcey &…