For Brit-hop duo Dirty Diggers, those weekends at the flea market, flicking “Past Lionel and Cher/To find a grimy snare,” have all paid off in the form of The Pleasure Is All Mine. The pieces sound familiar: grime’s East London accent and signature flow; The Streets’ self-deprecating ordinariness; sample-heavy production à la People Under the Stairs. But the result is fresh-proof that underground U.K. hip-hop has a lot more than videogame basslines and East End gun boasts going for it.