Cyndia Sieden has received the acclaim of audiences in London, Salzburg, Paris, Tokyo, Sydney, New York, and Los Angeles for her performances in opera and in concert. She moves between the Baroque, Classical and Contemporary repertoire with extraordinary accomplishment and considerable acclaim. Her past operatic appearances include the Royal Opera House at Covent Garden, the Bayerische Staatsoper in Munich, the Paris Opéra Bastille, Gran Teatre del Liceu in Barcelona, de Vlaamse Opera in Antwerp, the English National Opera, La Monnaie in Brussels, the Santa Fe Opera, Boston Early Music Festival, the Carmel Bach Festival, and Seattle Opera. Concert engagements have seen her perform with such famed ensembles as the Orchestra of the Eighteenth Century, the Handel and Haydn Society, the Boston Symphony Orchestra, the St. Louis Symphony, Boston Baroque, the Cleveland Orchestra, the Alabama Symphony, Chicago's Music of the Baroque, Apollo's Fire, the Australian Brandenburg Orchestra, the St. Paul Chamber Orchestra, and the Philharmonia Baroque Orchestra.

Cyndia Sieden performs in “Handel's Messiah” on November 30, December 1, and December 2.