The musical also features an unusual amount of "group-description" numbers. According to musicologist Jessica Sternfeld, such numbers are usually relegated to the prologue and nothing more, as seen in "Another Op'nin', Another Show" from "Kiss Me, Kate" and "Tradition" from "Fiddler on the Roof". "Cats" on the other hand features four Jellicle-defining songs: "Jellicle Songs for Jellicle Cats", "The Naming of Cats", "The Jellicle Ball" and "The Ad-Dressing of Cats". These numbers allow the cats to celebrate their tribe and species as a whole, in between the ones that celebrate individual members.