In its first year of exclusively programming Merriweather Post Pavilion, I.M.P. sets premier shows, including Sarah McLachlan and Dave Matthews Band for summer concerts. Read Ray Waddell's column.

In its first year of exclusively programming Merriweather Post Pavilion, I.M.P. sets premier shows, including Sarah McLachlan and Dave Matthews Band for summer concerts. Read Ray Waddell's column.