Marilyn Horne, mezzo-soprano Marie Gotzemezzo-soprano Rita Gorr, mezzo-soprano Magdalena Kozena, mezzo-soprano Ameral Gunson, mezzo-soprano Della Jonesmezzo-soprano Deryn Edwards, mezzo-soprano Marta Lukin, mezzo-soprano Marjana Lipovsek, mezzo-soprano Cecilia Bartoli, mezzo-soprano