Her principal teacher was Nadine Conner, and her educational background includes a Bachelor of Arts from the University of California at Los Angeles, and advanced studies at the American Opera Center of The Juilliard School.
Raised in Westchester, California, Marsee was the New York City Opera's leading mezzo-soprano from 1970, when she debuted as Sara, Duchess of Nottingham, opposite Beverly Sills, Plácido Domingo, and Louis Quilico, in Donizetti's Roberto Devereux, with Julius Rudel conducting Tito Capobianco's production.
She proceeded to sing a great gallery of roles at the City Opera, including Siébel in Faust, Angelina in La Cenerentola, Rosina in Il barbiere di Siviglia, Sesto in Giulio Cesare, Cherubino in Le nozze di Figaro (opposite Michael Devlin), Nicklausse in Les contes d'Hoffmann (with Sills and Norman Treigle), Dorabella in Così fan tutte (with Patricia Brooks), Octavian in Der Rosenkavalier (with Johanna Meier), Maddalena in Rigoletto (opposite José Carreras), Giovanna Seymour in Anna Bolena, the Composer in Ariadne auf Naxos (with Carol Neblett), Maffio Orsini in Lucrezia Borgia (with Sills), the title role of La belle Hélène, Zaida in Il turco in Italia, Estella Drummle in the world premiere of Miss Havisham's Fire (with Rita Shane), Doña Manuela in La loca, Mariana in the world premiere of The Student from Salamanca, Sesto in La clemenza di Tito, Néris in the Italian version of Médée (with Marisa Galvany), the name part in Carmen (in Frank Corsaro's production), the title role of La Grande-Duchesse de Gérolstein, Prince Charmant in Cendrillon, Mallika in Lakmé, Bellino in Casanova's Homecoming, Adalgisa in Norma, Dulcinée in Don Quichotte, Charlotte in Werther (with Jon Garrison), Valencienne in Die lustige Witwe, Marcellina in Le nozze di Figaro (with Herbert Perry as Figaro), Suzuki in Madama Butterfly, La chatte in L'enfant et les sortilèges, Berta in Il barbiere di Siviglia, Rose in the world premiere of Marilyn, and Marta in Mefistofele, as well as musical comedy.
She appeared with companies in Baton Rouge (Giulietta in Les contes d'Hoffmann, with Paul Groves), Boston (Rosina in Il barbiere di Siviglia for Opera New England, and Maddalena in Rigoletto for Boston Opera Group, both directed by Sarah Caldwell), Cincinnati (Rigoletto and Roberto Devereux), Columbus (Prince Orlovsky in Die Fledermaus, and Marcellina in Le nozze di Figaro), Connecticut (Hänsel in Hänsel und Gretel; Dinah in Trouble in Tahiti; and Nicklausse in Les contes d'Hoffmann, opposite Nicolai Gedda), Fort Worth (Cherubino), Houston (Preziosilla in La forza del destino), Memphis (Ariadne auf Naxos), Michigan (title role in The Maid of Orléans), Milwaukee (Laura in La Gioconda, with Gilda Cruz-Romo and Harry Theyard), New Orleans (Urbain in Les Huguenots), Omaha (Cherubino in Le nozze di Figaro, and the name part in La périchole), Philadelphia (Rigoletto, opposite Luciano Pavarotti; Cherubino, with Treigle and Richard Fredricks; and Anna Bolena, with Renata Scotto), Pittsburgh (Rigoletto), St Paul (world premiere of Casanova's Homecoming, for the Minnesota Opera), San Antonio (Nicklausse in Les contes d'Hoffmann), San Diego (Cherubino in Le nozze di Figaro; Così fan tutte; the world premiere of La loca; Giulietta in Un giorno di regno; the Verdi Requiem; Anna Bolena, with Katia Ricciarelli; and Cuniza in Oberto, with Ferruccio Furlanetto), San Francisco (as Shelly Ward in the world premiere of Angle of Repose, with Nancy Shade and Chester Ludgin; La forza del destino, with Anna Tomowa-Sintow, then Raina Kabaivanska, Renato Bruson, and Paul Plishka; Faust, with Giacomo Aragall; and as Barbara in Kát'a Kabanová, with Elisabeth Söderström and William Cochran, conducted by Rafael Kubelík), Washington DC (Sesto in Giulio Cesare, with Tatiana Troyanos and June Anderson, for the Handel Festival), as well as the Friends of French Opera (in Armide) at Carnegie Hall, and Wolf Trap (Cherubino, opposite Joy Clements and Phyllis Curtin; Roberto Devereux; and Carmen).
Marsee was seen in a number of PBS television broadcasts: Rachel, la cubana (as Lucile; world premiere, conducted by the composer, Hans Werner Henze, 1974), Roberto Devereux (with Sills, 1975), Il turco in Italia (with Sills and Donald Gramm, 1978), La Cenerentola (with Rockwell Blake and Alan Titus, 1980), Rigoletto (1988), A Little Night Music (with Regina Resnik, 1990) and Le nozze di Figaro (as Marcellina, 1991).