BROWN WHORNET 10/29, FIRESIDE BOWL It’s dawned on some of us lately that the most enervating and threatening music one can possibly play is not punk or gangsta rap or death metal but rather prog–and by that I mean the kind of obscenely elaborate, indulgent pileup favored by folks who think Sheik Yerbouti was too subtle. In addition to displaying promiscuous technical proficiency and toilet humor, Austin’s Brown Whornet curse the pope, tweak racial humor, and make hamburgers unappealing forever. They claim to have written more than a hundred “songs” over the past couple years, so their set list may not sound exactly like their latest self-released CD (also called Brown Whornet), but mangled free jazz, luv-me-baby R & B, parodically straight hardcore, and something that sounds like Yes on a boom box whose batteries are dying are all in their arsenal. REVEILLE 10/30, RIVIERA Rage Against the Machine just announced tour dates, eliminating any real purpose this Boston band might have served. Perhaps all the youthful fervor on their Elektra debut, Laced, will be channeled into something less derivative when they grow up. Also on this bill are the Jim Rose Circus and Godsmack.