Dex Romweber Duo Romweber morphs into a guitar-swingin’ madman the moment his six strings are plugged into the amps. The rickety guitar and his signature growl spew forth a maniacal blend of rockabilly, country and blues that’s so delightfully old timey that trends be damned. The duo, with his sister Sara on the drums, is in a renaissance of sorts, channeling Dex’s ole combo the Flat Duo Jets while awakening newbies to the possibilities of raw spirituality. The duo is releasing another fab new record, Is That You In Blue?, this week. With the Lesser Pauls and Erika Blatnik. $8. Snug Harbor. www.snugrock.com.