ABSTRACT
Anyone who attempts to sing extemporaneously—that is, scat—will tell you that the hardest aspect of that kind of singing is to stay in tune. You are wandering all over the scales, the notes coming out of your mouth a millisecond after you think of them…. A singer has to work doubly hard to emit those random notes in scat singing with perfect intonation. Well, I should say all singers except Ella. Her notes float out in perfect pitch, effortless and, most important of all, swinging.
