Enigma Variations
Among the other ballets in which Sibley created roles are "Monotones", "Jazz Calendar", "Anastasia", "Triad", "L’invitation au voyage", "Varii Capricci", "Fleeting Figures" and "Enigma Variations". In "The Guardian", Mary Clarke said when Sibley first announced her retirement, "Other dancers will inherit the ballerina roles but one small Ashton creation is Sibley's for ever. No-one has, no-one ever will get to the heart of Dorabella in Enigma Variations the way Sibley did. There have been other Swan Queens, Auroras and Giselles but for anyone who saw Sibley dance there is only one Dorabella."