Bonnie Lockhart and Nancy Schimmel have been singing at rallies and other political events for over sixty years. They discuss the challenges and joys of trying to rally people with music around a cause. Occupella is one iteration of their work, formed during the Occupy movement. More information at BonnieLockhart.com, NancySchimmel.com and the ever evolving Occupella songbook is available at occupella.org 

https://www.occupella.org/comprehensive.html