Oakland-stationed duo Black Spirituals, a collaboration between guitarist Zachary James Watkins and percussionist Marshall Trammell, have invented a new platform for the intersection of tone-generating electronics and the heart-thumping technology of acoustic percussion. The group features a new tradition in conversant, duo vernacular dynamics that sparked a revolution in their conceptions of space, stage, ritual, performance, geography, praxis, brotherhood, relationships, rockin’ out, and more.