Susanna in Wolfgang Amadeus Mozart's The Marriage of Figaro and Mimì in Giacomo Puccini's La bohème from September 1966 through May 1967; with periodic breaks during that period. In 1965 Peil was the featured soprano soloist in a concert honoring Risë Stevens with the California Chamber Symphony at The Beverly Hilton. That same year she performed the role of Pamina in The Magic Flute with conductor Thomas Scherman and the Little Orchestra Society at Philharmonic Hall. In 1966 she was the soprano soloist in performances of Christian Ignatius Latrobe's Dies Irae at the Early American Moravian Music Festival at Salem College. In 1968 she made her much delayed New York recital debut at Weill Recital Hall of Carnegie Hall as part of her Young Concert Artists win from years earlier. She also sang with the New York City Opera, making her debut with the company in the Spring of 1972. Peil performed as a chamber musician during the late 1960s and 1970s, often in conjunction with her then husband, the clarinetist Jerry Kirkbride. Both were members of the Divario Chamber Ensemble in 1969 and 1970. In 1976 the two of them were guest artists with the Boehm Quintette in a concert organized by the New York Flute Club entitled "The Flute In American Music- A Concert commemorating the Bicentennial of the Independence of the United States" at Carnegie Hall. On her own, she was the featured soprano soloist in a concert of Bach cantatas with the Hampshire Quartet at Alice Tully Hall in 1972. In the mid 1970s she performed with the Musical Arts Studio chamber opera ensemble, including performances at the Library of Congress in 1973. In 1977 she performed in a concert of Gerald Ginsburg's 'theatre lieder' at Alice Tully Hall. In 1971, Peil originated the role of Alma in the world premiere of Lee Hoiby's opera adaptation of Tennessee Williams's play Summer and Smoke, at the Minnesota Opera. She performed it again with the Chicago Opera Theater when it was broadcast on television in 1982 (based on a 1980 performance). She returned to the Minnesota Opera several more times. With that company she portrayed Leonora in the United States premiere of Carl Nielsen's Maskarade in 1972. Transition to stage actress: 1983–1991 Peil made a transition into musical theatre with the Minnesota Opera, performing the title role of Cole Porter's Kiss Me, Kate in 1983. Of that experience