May started off with a bang, as San Antonio roots-rock veterans The Krayolas fired off a shot heard ‘round the world (that is to say: Texas): ‘1070 (I’m Your Dirty Mexican),’ recorded in protest of Arizona’s recent passage of a hard-line immigration law. The song’s gloomy, slow-burning groove, augmented with Farfisa, fits the ominous, if sometimes perplexing lyrics . . . all the same, the song has some bracing lines, in particular the chorus.”