Harpist Ann Roos Published: July 6, 2011 By: admin, In: Events, Comments Off on Harpist Ann Roos Anne Roos, Celtic harpist, and Séan Cummings, on bagpipe, will be at the Boathouse Theatre at the Tallac Site on the South Shore July 22 at 7:30pm. Tickets range from $5 to $12.