​Marie-Christine Delbeau has performed to critical acclaim in recitals throughout the United States and Europe. Il Messagero fervently noted "...it was particularly compelling to follow the development of the music as guided by this great American pianist so in tune with the music, which she so intimately interprets."

She was a concerto soloist with numerous orchestras including the Delaware Symphony, Midland-Odessa Symphony, Austin Symphony and the Mid-Atlantic Chamber Ensemble. She has also performed in concert at the Weill Recital Hall /Carnegie Hall in New York City, and other distinguished performances include a solo recital for State Days at the Kennedy Center, a celebration of the 25th anniversary of the Washington DC concert hall, where she represented the state of Delaware. Ms. Delbeau was also in the featured performance of the national conference of the Lincoln Center Institute for Arts in Education at Lincoln Center in New York City.

In addition to her appearances as soloist, Ms. Delbeau is an active chamber musician. She performed in the first critically acclaimed gala concert "Fiddlefest" at Carnegie Hall with violinist Diane Monroe. On this concert, Ms. Delbeau shared the stage with Ithzak Perlman, Isaac Stern, Midori, Arnold Steinhardt, Michael Tree, Samuel Sanders, Mark O’Conner and Billy Taylor.  She was invited to appear again with Monroe in a "Fiddlefest" gala performance at the Tönhalle in Zürich, Switzerland, where she performed with legendary violinist Isaac Stern.

As a member of the Johannes Piano Quartet, she performed in recital at the Philadelphia Arts Alliance and at the Festival at Mt. Gretna with Robert Chen, current concertmaster for the Chicago Symphony Orchestra, Philadelphia Orchestra principal violist Choong-Jin Chang and Los Angeles Philharmonic principal cellist Peter Stumpf.  Ms. Delbeau has also performed as a member of the Lenape Chamber Ensemble with these artists and violist Roberto Diaz, in Philadelphia Orchestra Connection Series concerts and in numerous other recitals regionally and nationally with some of these artists. 

Ms. Delbeau was also a member of Contrasts: Chamber Artists of Philadelphia, a group dedicated to featuring works by contemporary African-American composers. She has performed in recital with the eminent violinist Robert Mann and has also performed in concerts with the Mendelssohn String Quartet.  Delbeau studied with pianists John Perry, Tong-Il Han and Jerome Lowenthal, amongst others, and holds degrees from the University of Texas at Austin and the University of North Texas.