Internationally acclaimed mezzo-soprano Mary Phillips is particularly in demand in the repertoire of Wagner, Verdi, Beethoven, and Mahler.

Recent appearances have included her acclaimed role debut as Brangaene in Wagner's Tristan und Isolde for Dallas Opera and Schwertleite in Wagner's Ring and Mrs. Alexander in Philip Glass's Satyagraha for the Metropolitan Opera. She is perhaps best known for her Amneris in Aida, reprised in 2012 for Hawaii Opera Theatre. She has sung Fricka and Waltraute in Die Walküre and Waltraute in Götterdämmerung at Canadian Opera; Erda for Scottish Opera, and Wellgunde and Rossweise with Seattle Opera. Also hailed for her Verdi, she has sung Eboli in Don Carlo for Canadian Opera, and Azucena in Il Trovatore at Seattle Opera.

Concert highlights include Mahler’s Symphony No. 8 with the New York Philharmonic, a performance now available on iTunes, Mahler’s Symphony No. 2 with the Atlanta Symphony (recorded for Telarc), the Los Angeles Philharmonic, and in Beijing as part of the 2008 Summer Olympics festivities. Her many performances of Beethoven's Symphony No. 9 include the Boston Symphony Orchestra under James Levine and the Philadelphia Orchestra under Charles Dutoit, Utah Symphony and Opera, the National Symphony, and the Hong Kong Philharmonic. Performances in 2012 will include Beethoven Symphony No. 9 with the Baltimore Symphony, Prokofiev's Alexander Nevsky with the Milwaukee Symphony, and in 2013 she sings Mendelssohn's Elijah with the Nashville Symphony. She has recorded Beethoven’s Opferlied and Symphony No. 9 with the Philharmonia Baroque Orchestra.

She maintains a strong interest in performing and recording baroque repertoire.  On the opera stage this has included Sesto in Giulio Cesare in Barcelona and Eduige in Rodelinda for Dallas Opera. Concert appearances include Messiah at Carnegie Hall and with the Atlanta Symphony and Gulbenkian Orchestra in Lisbon, as well as with the Seattle Symphony, with whom she has also performed Bach's Mass in B Minor. She has sung the Vivaldi Gloria at the Hollywood Bowl with the Los Angeles Philharmonic and has recorded the Bach Magnificat for Boston Baroque.