Roberta Donnay, whose interpretive license is valid for both jazz and blues, knows exactly how far she can go drawing inspiration from time-honored singers like Bessie Smith, Ethel Waters and Ida Cox without sacrificing a sense of self.

Fronting her swinging Prohibition Mob Band (three horns plus rhythm section), the Bay Area chanteuse resuscitates a dozen chestnuts, among them “You Go To My Head” (recall Billie Holiday’s version) and “Sugar Blues” (well treated by Ella Fitzgerald). Donnay’s touch is firm and playfully coy, her tonal control secure and her combination of silkiness and sensuality effective in a meticulous, measured manner.