Sounds

The human body is amazing. I'm thinking of voices right now. It's just wild that voices can be so different as to be immediately recognizable. I was listening to Lauren Bacall singing "Welcome to the Theatre," (and aside from the inevitable feeling of loss I get whenever I hear songs about the theatre -- you should see me listen to A Chorus Line, it's depressing), I was struck by the fact that even thought I never knew she had done that song, I could recognize her voice right away. How do we do that?