KATHRYN MUELLER (soprano), praised for her “soaring soprano” and “flights of stratospheric brilliance” (Arizona Daily Star, Miami Herald), is a versatile performer with specialties in early music and contemporary works. Kathryn has appeared as a soloist with the Washington Bach Consort, Santa Fe Pro Musica, Tucson Symphony Orchestra, New Trinity Baroque (Atlanta), Bach Collegium San Diego, and Chicago's Ars Antigua.

Solo works performed include Bach’s St. Matthew Passion, St. John Passion, and Magnificat, Barber's Knoxville: Summer of 1915, Mozart’s Requiem and C Minor Mass, Handel’s Messiah and L’Allegro, il Penseroso, ed il Moderato, and Stravinksy’s Pribaoutki. She has sung the operatic roles of Amy in Little Women, Monica in the The Medium, and Miss Pinkerton in The Old Maid and the Thief with companies including Arizona Opera and the Seattle Academy of Baroque Opera.
Kathryn gave the world premiere of Ananda Sukarlan’s song cycle Love and Variations, commissioned for her vocal-piano ensemble, the Swara Sonora Trio. She has recorded extensively with New Trinity Baroque on the Edition Lilac label, and is also featured as a soloist on recordings by the Santa Fe Desert Chorale, Seraphic Fire, and Tucson Chamber Artists.

An accomplished choral musician as well as a soloist, Kathryn has sung with some of the finest choral ensembles in the United States, including the Handel and Haydn Society, Seraphic Fire (Miami, FL), and the Santa Fe Desert Chorale. She also sings with the internationally-acclaimed medieval group LIBER, and with soprano Kristen Watson in the soprano duo Les Sirènes.
Kathryn made her international debut in 2009 on an Indonesian concert tour with the Swara Sonora Trio, closely followed by concerts in Central Mexico with the period orchestra Capella Guanajuatensis.
During the summer of 2011, Kathryn was a Fellow in the Carmel Bach Festival's prestigious Virginia Best Adams Vocal Master Class.