"One can say that for European music the innovation of Stravinsky was revolutionary because again, Stravinsky and that whole group of European composers who introduced African tone into European music. In "Afternoon of a Faun" and "The Rite of Spring" and all of that you can keep hearing, those notes, that pentatonic scale."
January 1, 1970
https://en.wikiquote.org/wiki/Igor_Stravinsky