The organizers of a 9-day festival on the Bangor Waterfront are unveiling some of the musical acts for this year’s event. The Kahbang music, art and film festival will feature more than 40 bands – from rock to funk to hip-hop. This year’s lineup includes My Morning Jacket, a Grammy-nominated rock band.Other bands set to perform are Chromeo, Grace Potter and the Nocturnals and Atmosphere.This will be the third year for Kahbang, which started in 2009 as a one-day concert.Spokesperson Chris Michaud says, “All of us are still volunteers, we’re all from the Bangor area and we wanted to throw a great event for our community. Over the past two years and now the third in our development, we’ve grown exponentially and we’re super proud and excited about what we’ve been able to create here.”This year’s festival is set for August 5th through the 13th. A limited number of tickets go on sale Saturday morning on the festival’s website, www.kahbang.com. Organizers plan to announce more musical acts, along with details of the film and art displays in the coming weeks.