It reminds of my recent read from Desmond/Hall Mosaic:
Brubeck, who has never spent more than ten minutes of his life at an electric organ, much less the one he is now at, is producing sounds like an early Atwater-Kent Synthesizer. (Later he makes a few major breakthroughs, like locating the volume control pedal and figuring out how to wiggle his right hand, achieving a tremolo effect similar to Jimmy Smith with a terminal hangover, but doesn’t help much.)