Looking for that long-out-of-print Loretta Lynn/Conway Twitty duet album? The new Calexico DVD? A painting of an albino with an Afro bowling? Sig's Lagoon, the latest musical addition to the thriving Continental strip at the Ensemble/HCC Metro stop, has all that and more. The shop takes its name from a column by Sig Byrd, the long-deceased chronicler of mid-20th-century Houston's seamy underbelly and street-level nightlife. Houston music is given pride of place here, which is no surprise, as owners Thomas and Jennifer Escalante are deeply involved in that scene; Thomas is the singer in the band Clouseaux. Lately, the CDs/vinyl/DVDs/books/novelties store has been dabbling in the art world -- the high walls are festooned with works by local and regional painters -- and in the coming year, the Escalantes hope to host small musical events as well.