Hotter Than That, written by his wife, Lil Hardin, who had dandy rhythm herself, is scat vocal a la king, as Armstrong trades succulent phrases with guitar whiz Lonnie Johnson before offering a brief but telling solo.

But suddenly, inexplicably, I've had a spleenful of it, and I'm going for the kid.

great-grandfather, great-great-grandfather, great-great-great-grandfather

This d-c signal is then photochopped in a solid-state oscillation circuit and the resulting a-c signal amplified.