Nathan Williams, Michael Doucet and Dennis Paul Williams

El Sid O's on a recent Monday afternooN Signs of a successful weekend are still scattered around Sid Williams' Lafayette nightclub.

Nathan Williams, Sid's brother and leader of the Zydeco Cha-Chas--who perform here frequently-is moving around the dark hall, picking up the empty bottles and wiping down the bar. "I'm the kind of guy that likes to work, " he shrugs.

Nathan's brother, the artist anD Zydeco C...