Get limber! Stretch it out! I am not taking any responsibilty for the muscles pulled while trying to dance to Edelweiss’ highly infectious and limb possessing EP Pre-Colombians. You remember these teenage Pennsylvanian wunder-rockers from “(No)” back in January and now they have dropped a full EP that flexes their sound in pleasant ways. As you can hear on “Fiasco,” theirÂ signatureÂ spazz outs are still there but they also get a little tender on us with the more straightforward instrumental jam “A New Sound From Pennsylvania.” Any way you slice it, the fact that these guys are still under 18 means that nothing but good things lie ahead for them. And us, really.