Y La Bamba—a band as gorgeous as they are entertaining—have cleverly avoided the curse of accessibility by being extremely weird: Fuzzy guitars, whimsical percussion, and harmonizing multi-instrumentalists weave in and out of bilingual lyrics regarding heavy spiritual conundrums. Sometimes there is Mexican accordion; sometimes there is full-on rock. It's enjoyable, unexpected. But it's all ultimately background for Luz Mendoza, the force of nature at the front of the stage, a smoky silver-screen chanteuse who is nevertheless heavily tattooed. Her extreme confidence as a frontwoman makes Y La Bamba what many of their musically talented peers never could be: memorable. Their upcoming album was produced by Steve Berlin of Los Lobos, and features even more Spanish lyrics and lush arrangements. Local stalwart Sean Flinn, the band's one-time guitar player, opens up with his band the Royal We. REBECCA WILSON