If you want to hear a good example of a category of music specific to the 21st century, and probably specific even to 2013, check out Horsehands’ “Sirs” EP. Rhythmically and melodically dense but with quick, upbeat songs and plucky guitar lines; “Sirs” doesn’t remind me of anything so much as music that’s coming out right now. The singer sounds to me like a bizarro-world David Bowie on Ziggy Stardust. If for no other reason, check out the album for the cool cover art, which is a picture of two men speed-walking away from a wall of lava that’s coming down the street. Picks include Ocho, Shirts and Skins, and A Spat. - Geoff Noble