Mickey Hart will join Steve Kimock and Stephen Perkins tonight at New Yorks Canal Room. Part of the first annual Green Apple Music Festival, this is the second time the three musicians have collaborated at the Canal Room this week: on Wednesday Kimock and Perkins made a surprise appearance at Harts Rhythm Devils jam session. In addition, Jacob Fred Jazz Odyssey bassist Reed Mathis and trumpeter Willie Waldman will perform with the ensemble. At 5 PM today, Hart will perform with the Mutaytor and Baaba Maal at Green Apples EarthFair in front of Grand Central Station.