I've been on that "Miss Holiday Can't Sing" train before, but I came around when this hit me in the chest 12 years ago: http://youtu.be/xuzltUeITpw

When Miles Davis said that her singing influenced his playing, I could hear that. Both artists relied more with the subtle "less is more" technique. To me, she's still more soulful, more expressive and more gut wrenching with her lil' ol' one octave than the folks who shouted blood out of their throats.