“an agile, eloquent player” (New York Times)

Ms. O’Sullivan who performs on Baroque, Classical, and modern cello is one of America’s most honored and valued continuo players and is equally admired for her poetic and refined interpretations of the solo cello repertory from its earliest days through the 19th century.  She has played key roles in chamber ensembles including the Four Nations Ensemble, The Haydn Baryton Trio and the Classical Quartet.  In concert and recording, Ms. O’Sullivan has given memorable performances of music by Frescobaldi, Caldara, Porpora, Leclair, Handel, Haydn, Schobert, Mozart and Beethoven, performing cello sonatas, concertos, trio sonatas, arias with cello obbligato, string quartets and virtually every form and format in three centuries of well known and rarely heard music.

Ms. O’Sullivan also plays key roles in American music making as continuo cellist for both Opera Lafayette with whom she has performed works of Philidor, Monsigny and Francouer at the Opera de Versailles as principal cellist. She is continuo and principal cellist for the Bach Choir of Bethlehem, one of America’s most venerable musical organizations.  On modern cello, Ms. O’Sullivan is heard with the St Luke’s Orchestra in New York.

Ms. O’Sullivan has performed at halls including Lincoln Center, the Kennedy Center, the New York Metropolitan Museum of Art, Merkin Concert Hall, the New York Historical Society, Columbia University, Yale University, London’s Wigmore Hall, the Ashmolean Museum in Oxford, England, and Esterhazy Palace in Austria and in festivals including Mostly Mozart in New York, Ottawa Chamber Music Fest, the New England Bach Festival and New Haven’s Festival of Arts and Ideas.

As a teacher and lecturer Ms. O’Sullivan has participated in residencies for University students as well as arts in education programs for children from 5 to 18 years old. 

Loretta gave a pre-concert lecture for Yo-Yo Ma’s performance of the Bach Cello Suites in Bethlehem, Pennsylvania, and has given performance practice master classes at Brooklyn College, the University of Iowa, Memphis State University, and the University of Wisconsin. She has coached baroque cellists at Rutgers University, Mannes School of Music, and The Juilliard School. 

Her performances of the complete Geminiani Sonatas with the Four Nations Ensemble can be heard on Orchid Classics. Previous recorded solo performances include sonatas of Vivaldi and Porpora as well as her own transcription of the Biber Passacaglia.