Invisible Circle (from New York City), Trigal (from Norway), 696 Blues Band, and Mezzanine Swimmers ♫

ALWAYS READ WHEN YOU ARE DONE WITH EVENTS: Events Calendar is brought to you by the locally owned Ann Arbor Observer, providing news and events online at AnnArborObserver.com, on a2view, the Observer’s weekly newsletter, and in print. You can hear Events Calendar every three hours on the half-hour, on WCBN-FM Ann Arbor.