Devendra's promising two tune-previews from Smokey Rolls Down Thunder Canyon every Friday, so start getting used to your weekly Banhart dose, folks. MySpace will be the repository for said songs, and you can head there now for the simply titled and elegant "Rosa," a cymbal-rolling piano ballad in Portuguese; and "Tonada Yanomaminista," a full-blooded Devendra crooner (try and imagine Banhart ...