La Follia Austin Baroque, which often performs music from the era of Bach and Mozart, will present a concert that celebrates July 4 as they present the amazing music composed and performed by the Moravians in post-Revolutionary America. It will be an extravaganza with chorus, strings, woodwinds, organ and trombone choir. Featured is a performance of the first musical commemoration of July 4 in 1783, the "Psalm of Joy."