Rock has been losing steam as a mainstream force for 20 years now, but as long as young people exist, there will be a need for music with big chunky riffs, exciting dynamic swings, and headbang-worthy rhythms. In the last decade, EDM (especially the derisively named ‘bro-step’) has filled that cultural hole, with Knife Party, Skrillex and DJ Snake wringing some behemoth riffage from their plugin stacks. Keeping the party going are a tweaky electro-pop banger from Mumbai’s Shaa’ir + Func, and Azealia Banks’ deliriously nasty “212.”