In an interview, Jon Hendricks asked Dizzy Gillespie to demonstrate the evolution of styles by singing a riff as Louis Armstrong would sing it, then as how Roy Eldridge would sing it, and finally how Dizzy would sing it. Dizzy replied with a simple rhythmic idea from Louis, an intense, agitated version for Roy and then an arhythmic flurry of fast notes for himself. Although Dizzy was joking around, he admitted that his example wasn’t too far from reality. Read more on Last.fm