A crew was busy Wednesday morning installing the “Swingin’ Stage” at Main and Monroe streets that will be used for the Jacksonville Jazz Festival. This year’s music begins at 7 p.m. today at the Florida Theatre with the Great American Piano Competition. The three-day jazz festival, produced by the City Office of Special Events, starts at 5 p.m. Friday when performances begin on the “Swingin’ Stage,” the “Groovin’ Stage” at Hemming Plaza and the “Breezin’ Stage” at the Landing. For the complete entertainment schedule, visit jaxjazzfest.com.