This three-act, 18-person Tiny Desk (home) concert was conceived by Michael League, Snarky Puppy's composer and bandleader. He and his cadre of artists on the GroundUP record label believe in two important points: that music and politics are inextricably linked, and the best way to connect people is through song. League's rolodex is impressive. If you're a jazz fan, you're almost certain to know many of the performers in this ambitious Tiny Desk, which includes (among others) Grammy winners Gregory Porter, Brad Mehldau and Chris Potter. The concert features three distinct ensembles.