On Sunday, April 2 at 6:00 p.m., join the Collins Center for the Arts for a pre-performance lecture delivered by UMaine jazz professor Dan Barrett, presented with the support of the Clement and Linda McGillicuddy Humanities Center. Dr. Dan Barrett teaches low brass instruments, music theory, and jazz courses at the University of Maine, and plays and performs around the state. He also leads the Maine Trombone Collective and the Maine Brass Guild. Barrett's career has included performances with the…