The role of "Pat Nixon" in John Adams' Nixon in China remains another one of Ms. Kanyova's signature roles performed with Opera Theatre of Saint Louis, Canadian Opera company, Chicago Opera Theater, Opera Colorado, Kansas City Lyric Opera, San Francisco Opera, San Diego Opera, Ravinia Music Festival and Phoenix Symphony.  Of her portrayal of Pat Nixon, Robert Trussell of the Kansas City Star raves, "Maria Kanyova's heartfelt portrayal of Pat as a woman of simple origins, uncomfortable on the world stage is extraordinary. Her voice could stop time."

In addition to her busy operatic career, Ms. Kanyova has performed in concert with Ravinia Music Festival, Grant Park Music Festival, Boston Symphony Orchestra, Madison Symphony, Phoenix Symphony, Minnesota Symphony, North Carolina Symphony, Kansas City Symphony, Bremerton Symphony and The Imperial Symphony Orchestra.

York City Opera and Dallas Opera; the title role of Jenufa with Glimmerglass Opera; "Adina" in L'elisir d'amore" with Boston Lyric Opera and Opera Colorado; "Norina" in Don  Pasquale with Palm Beach Opera;  and "Corinna," in  Il viaggio a Reims  with New York City Opera. 

A strong supporter of new music, Ms. Kanyova has created many new roles in contemporary opera and reprised roles in lesser know works. Her most recent world premiere was performed with the San Francisco Opera as the role of "Miriam" in Mark Adamo's The Gospel of Mary Magdalene.  At the Lyric Opera of Chicago, Ms. Kanyova created the role of "Rita, the Wedding Planner," in William Bolcom's world premiere opera, A Wedding.  Ms. Kanyova has also successfully reprised the role of "Marie Antoinette," in John Corigliano's The Ghosts of Versaille performed at Opera Theatre of Saint Louis and the Wexford Opera Festival.  Additionally, Ms. Kanyova was a part of Glimmerglass Opera's successful staging of John Philip Sousa's operetta The Glass Blowers singing the leading role of "Annabelle."

Critics have hailed soprano Maria Kanyova as an extraordinary singing actress.  Her extensive performing career has encompassed a wide variety of leading roles.  From a PBS telecast portraying the role of "Mimi in La boheme with New York City Opera to "Gretel" in Hansel und Gretel at Lyric Opera of Chicago, Ms. Kanyova has enjoyed the opportunity to portray some of the world's most beloved operatic heroines. "Violetta," remains one of Ms. Kanyova's signature roles which she has performed with Lyric Opera of Chicago, New York City Opera, Portland Opera, Opera Colorado, Utah Opera, Intermountain Opera Company and The Imperial Symphony Orchestra.  Madama Butterfly's Cio-Cio-San is another  mainstay in Ms. Kanyova's regular repertoire of leading roles.  A role she has performed with Lyric Opera of Chicago, Central City Opera, Florida Grand Opera, Madison Opera, Tulsa Opera, New Orleans Opera and Opera San Antonio. The Denver Post raved, "Making her striking Central City debut in the demanding role, soprano Maria Kanyova  hardly could be more convincing with her appropriate youthful appearance. . . .More important, she possesses a pure forceful voice with a pleasing soft edge and she knows how to use it." 

Other leading roles Ms. Kanyova has performed include "Mimi" La boheme with New York City Opera, Dallas Opera, Houston Grand Opera and Des Moines Metro Opera; "Tatyana" in Eugene Onegin with Utah Opera, Boston Lyric Opera, Opera Pacific and Madison Opera; "Gretel" in Hansel und Gretel with Los Angeles Opera and Lyric Opera of Chicago; "Donna Elvira," in Don Giovanni with Los Angeles Opera and Opera Colorado; "Donna Anna," in the same opera with Glimmerglass Opera and Saint Louis Opera Theatre; "Constanze," in Die Entfuhrung aus dem Serail with Opera Colorado; "Nedda," in I Pagliacci with New