Mariann Cook is a professor of Music Theater Voice Emerita at the Westminster School of the Arts at º¬Ð߲ݴ«Ã½ as well as a professional singer and actress who has performed on Broadway in the national tour of The King and I. She formerly instructed voice at the University of Oklahoma Weitzenhoffer School of Musical Theatre. Other professional credits include Aldonza in a stock tour of “Man of La Manchaâ€� opposite Broadway veterans John Raitt and Jerome Hines, formerly with the Metropolitan Opera at The Papermill Playhouse. Additionally, she performed as Maria in “Sound of Music,â€� Hilda in “Plain and Fancy,â€� Nancy in “Oliver,â€� Eliza Doolittle in “My Fair Ladyâ€� and Guinevere in “Camelot.â€� As a cross-over singer, Mariann has performed with the Tulsa Opera as Berta in the “The Barber of Sevilleâ€� and the Second Lady in “The Magic Fluteâ€� under the baton of Ransom Wilson. Her Operetta roles include Natalie in “The Merry Widowâ€� with Mark Jacoby and Susan Powell, Buttercup in “Pinafore,â€� and Lady Bracknell in “Earnest in Love.â€� She has also been soloist in dozens of Broadway Symphonic Evenings nationally and can be heard on a newer recording of West Side Story as Anita.