What's swinging in words? If a guy makes you pat your foot and if you feel it down your back, you don't have to ask anybody if that's good music or not. You can always feel it.
Miles DavisBirth of the Cool' became a collector's item, I think, out of a reaction to Bird and Dizzy's music. Bird and Diz played this hip, real fast thing, and if you weren't a fast listener, you couldn't catch the humor or the feeling in their music. Their musical sound wasn't sweet, and it didn't have harmonic lines that you could easily hum out on the street with your girlfriend trying to get over with a kiss.
Miles Davis