Norton Commons will host its 4th annual “Corkestra” event at the northeast Jefferson County community’s outdoor lakefront amphitheater. The 2016 event features the Louisville Chorus playing alongside the completely musician-run orchestra, Louisville Philharmonia. Gates open at 2:30 p.m. and a 90-minute performance begins at 3:30 p.m. Visitors should pack their own blankets and lawn chairs.