Disaffected youths tinkering with indie instrumentation, the ruffians of Broncho ditched the dusty landscape of their Oklahoma home after their bassist Jonathan Ford booked a series of shows without their permission. But, what began as a loose recording session quickly took off, shooting the mischievous rocks into humble prominence with commercial hits like “Class Historian.” Bright and amiable, the track bumbles around a knotty melody that feels like a kinetic romp through a field of flowers with Iggy Pop and Julian Casablancas.
Thursday marked the first night of the resurrected La Semana Alegre music festival, which featured amazing performances from artists including Toadies, Girl…