…ded in that mission. “Leave the Door Open” is original enough to stand on its own two musical feet. Now, if what .Paak told Apple Music’s Zane Lowe is true — that “delta swamp blues was what we were going for” — I’ll tell you as an annoyingly proud blues man that this isn’t even close to that. “Leave the Door Open” is firmly a soul song in the Four Tops/Spinners tradition with some neo-soul …