..Malika Zarra, a relatively rare Moroccan Berber woman singer-songwriter, composer, and producer, appeared Friday night, the 6th, with her band during Winter JazzFest at the Zinc Bar. There were long lines of hopeful fans at the gate, waiting sometimes in vain to hear her live. Ms. Zarra has long been captivated by American jazz. Her ululating, restrained mezzo-soprano vocals wove Berber traditional melodies and North African 'chabi pop' with syncopated jazz improvisations in impeccable timing. Ms. Zarra's emotional range and complex intensities can be heard on her recent CD "Berber Taxi."..