The group has four generators, which can be identified with the ascending and descending semitones and the ascending and descending perfect fifths.
Arctic Circle | New Circle Road | Outer Critics Circle Award | National Book Critics Circle Award | Circle K | Circle Jerks | Circle | The Circle | Full Circle | Logan Circle | Golden Circle | Family Circle Cup | Blue Circle Industries | The Caucasian Chalk Circle | Kreisau Circle | Film Critics Circle of Australia | Family Circle | Circle of Life | Circle of Friends (1995 film) | Circle of Friends | Antarctic Circle | Mrs. Parker and the Vicious Circle | Magic Circle Club | Los Angeles Drama Critics Circle Award | Gold Circle Films | Family Circle Tennis Center | crop circle | Circle MRT Line | circle | Will the Circle Be Unbroken |