All these different kinds of fantastic music you hear today – course it’s all guitars now – used to hear that way back in the old sanctified churches where the sisters used to shout till their petticoats fell down. There ain’t nothing new. Old soup used over.

The primary source is the book Louis Armstrong: A Self Portrait, but I first read it yesterday in the excellent-so-far How the Beatles Destroyed Rock n Roll: An Alternative History of American Popular Music.