Don’t say I never give you nothing. This 1927 recording of Louis Armstrong‘s Hot Five features a duet passage with guitarist Lonnie Johnson in which, as Gunther Schuller points out in his classic Early Jazz, Armstrong is scatting in 3/4 while Johnson is playing in 4/4; the passage in question starts at 1:40. Polymetric stuff like this is how jazz got to be an influence on people like Elliott Carter. Moreover, it’s just some fucking awesome early jazz. Enjoy.