Described as a “voice of rich warmth and youthful elegance”, American soprano Mary-Alexandra Onstad is a versatile cross-over performer of opera, musical theatre, theatre, oratorio, art song, church music and more. Mrs. Onstad graduated in May 2010 with her Graduate Diploma in Voice and Opera Studies at the New England Conservatory of Music under the tutelage of Karen Holvik and Jean Anderson.

Mrs. Onstad has been seen on many stages with Reagle Music Theatre, MassOpera, Odyssey Opera, Boston Modern Orchestra Project, Cambridge Chamber Ensemble, NEMPAC Opera Project, Greater Worcester Opera, Longwood Opera, Boston Opera Collaborative, New England Conservatory Opera Theatre, New England Light Opera, Juventas New Music Ensemble, Providence Opera, Fargo-Moorhead Opera and Frieberg Opera Theatre. She is also a sought after church singer in the region working for various churches and religious institutions in the the Boston area. Mary-Alexandra is the Soprano II section leader for Jubilate Chamber Choir where they finished their choral residency in August 2025 at the Chichester Cathedral in Chichester England.

Mrs. Onstad is a passionate advocate for outreach within schools, nursing homes, and in her community. While completing her undergraduate studies, Mrs. Onstad sang in schools with the outreach team of the Fargo-Moorhead Opera. While studying at New England Conservatory in 2009, she performed a holiday quartet with three colleagues at schools, nursing homes and other venues. She has been seen collaborating with NEMPAC, NEMPAC Opera Project, Music Street, MassOpera, and Opera on Tap in various outreach settings.  

A few of her favorite roles include Rosalinda in Die Fledermaus, Fiordiligi in Cosi fan tutte, the Vixen in Jancek’s Cunning Little Vixen, Barbarina in Le Nozze di Figaro, and the Sandman in Hansel and Gretel.  Mrs. Onstad received her Master of Music in Voice at Shenandoah Conservatory and her Bachelor of Music in Voice at Concordia College in Moorhead, MN. She currently studies with Canadian Baritone, Michael Meraw, and coaches with Timothy Steele.

Along with her active performing career, Mary-Alexandra is a passionate teaching artist in the New England region. She teaches at LB Music School in Medford, at YMCA in Salem, and Newburyport Music Company in Newburyport, MA. She was an adjunct faculty member for 6 years at Northpoint Bible College and Seminary where she taught Voice, Piano, Ear Training and Music Theory. She was also on faculty at the North End Music and Performing Arts Center for 7 years teaching voice and piano lessons to students of all ages.