That old black magic has me in its spell, That old black magic that you weave so well; Icy fingers up and down my spine, The same old witchcraft when your eyes meet mine.
Black magic operates most effectively in preconscious, marginal areas. Casual curses are the most effective.
People who don't do jazz think it's black magic. But really, it's just a matter of getting used to it. It's fun to gamble. The trick is not to fall back on the things you've done before.
I know the difference between black magic and white magic.