Backstage at the Vibes. Now in its twentieth year, the four-day music, arts, and community celebration that is the Gathering of the Vibes is unlike any other festival of its kind. Family-friendly, green-focused, music-driven, and peace-lovin’, the event continues to evolve, expanding from its solid roots as a jamboree to honor the late Jerry Garcia, to a veritable cosmos of musical stars. In the heart of the northeast summer, this waterfront Gathering is pure joy.  This year, Wilco, The String Cheese Incident, Warren Haynes, George Porter, Jr., Branford Marsalis, Jackie Greene, Zappa Plays Zappa, Sharon Jones and the Dap Kings and scores more join an incredible line-up at Seaside Park from July 30 to August 2. The majority of the musicians who play Vibes once, return. A handful have been along for the ride from day one. So The Beat sent well-loved vocalist and Beat music columnist Christine Tambakis to catch up with Ken Hays along with some members of Deep Banana Blackout, all of whom have played the Vibes annually since it launched two decades ago, to ask them to reflect on what makes the event so special and to see what the Gathering looks like from the other side of the stage. Wendy Logan