Kristin Korb, Live in Vienna (Quantum Leap). Jay Leonhart wrote a song called “It’s Impossible to Sing and Play the Bass.” Kristin Korb didn’t get the message. This video disc recorded at Vienna’s Porgy and Bess presents Korb in a trio with club regulars pianist Fritz Pauer and drummer John Hollenbeck. The promotional blurb evoking Ray Brown, Charles Mingus, Sarah Vaughan and Ella Fitzgerald places a heavy load on her, but Korb justifies the hyperbole with musicianship and leadership. Her singing, bass playing and rapport with her sidemen and the audience are first rate. Highlights: Neil Hefti’s “Whirly Bird” at approximately the speed of light and fine soloing by everyone on “Cheek to Cheek.”