If Dr. Dog are the Beach Boys of Philadelphia, then the War on Drugs are the city's Byrds, a jangle pop band fusing Americana and mild psychedelia. But unlike the Dog, t.W.o.D. aren't exclusively committed to the retro mission. Wagonwheel Blues opens with an anthemic homage to Dylan, but soon veers through ambient drones that would sound right at home on an Animal Collective/Dodos playlist. Although the young band hasn't figured out how to totally fuse these two streams, it's well on its way.