Does music have a season? If it does, then jazz is meant for summer. The heat, the humidity, a chill band, a fresh vocalist. And the city for jazz? San Francisco must have something in the water, because so many terrific jazz vocalists seem to hail from there. Case in point, Mary Stallings, born in 1930, who almost immediately made a name for herself by singing at Frisco jazz clubs while still in her teens.
