After Brooklyn Raga Massive’s epic 2017 performance of Terry Riley’s groundbreaking minimalist masterwork “In C,” a genre-bending collaboration with Classical Revolution, the Brooklyn-based collective returns with a new groundbreaking project. Teaming up with Martha Redbone, the celebrated soul-steeped roots singer of Native American and African-American descent, BRM plunges into a charged cultural mashup combining Appalachian laments and blues hollers with classical Indian modes.