As inspired pairings go, Homeboy Sandman and Edan must rank amongst the upper echelons of humans to jointly assign verbiage to instrumentation. The former’s densely dispensed wordplay and the latter’s intermittent echo-drenched bars and psyche beats-cursions enjoy a sublime showcase in their inaugural collaborative effort, Humble Pi. Sonic inventions aside, it’s Sandman and Edan’s quest for the vestiges of humanity relative to mathematical constants and digital distractions that makes their milieu so magnificent. And on the latest episode of Across 135th Street, host Chairman Jefferson Mao welcomes this dynamite duo for an in-studio session of beats, rhymes and banter, live from New York.