During the Jazz age of the 1920's, "the cat's pajamas" referred to anything special, unique or "cool.” Musically speaking, the image of a cat in pajamas might suggest combining low clarinets (reminiscent of Prokofiev's use of a clarinet to describe the cat in "Peter And The Wolf") with a jaunty little tune in ragtime style, adding a few instrumental "meows," and you have (what else?): “The Cat’s Pajamas: A Felicitous Feline Ragtime Novelty!” Audiences and performers will love it from head to tail!