Simon's first opera appearance was in November 1962 with the
New York City Opera in Mozart's
The Marriage of Figaro where she played the role of Cherubino. That same year she won both the regional division of the
Metropolitan Opera National Council Auditions and the
Marian Anderson Award. She competed in the national finals of the Met auditions on March 23, 1962, performing the aria "Che farò senza Euridice" from Gluck's
Orfeo ed Euridice on the stage of the
Metropolitan Opera House. In 1964 she performed the role of Prince Orlofsky in
Die Fledermaus at
Lewisohn Stadium with
Franz Allers conducting. In 1965, she was the mezzo-soprano soloist in Beethoven's
Symphony No. 9 with the
New York Philharmonic, conductor
William Steinberg, and tenor
Richard Cassilly. That same year she recorded that work for
Command Records, this time with Steinberg conducting the
Pittsburgh Symphony Orchestra (PSO). She performed with the PSO again in 1967 as a soloist in symphonies by
Gustav Mahler which the orchestra performed in Pittsburgh and on tour to New York as part of the International Festival of Visiting Orchestras. In 1966 Simon was the alto soloist in Beethoven's
Mass in C major with the
Philadelphia Orchestra under conductor
Eugene Ormandy for performances at
Carnegie Hall in New York and the
Academy of Music in Philadelphia. That same year she recorded
Claude Debussy's
Le Martyre de saint Sébastien with conductor
Leonard Bernstein and the New York Philharmonic, and was one of the three ladies in Mozart's
The Magic Flute at the
Tanglewood Music Festival with the
Boston Symphony Orchestra, conductor
Erich Leinsdorf, and
Beverly Sills as the Queen of the Night. In 1967 Simon performed in the world premiere of Argentinian composer Alberto Ginastera's
Bomarzo at the
Lisner Auditorium in Washington, D.C., for the
Washington Opera Society, creating the role of the courtesan Pantasilea. Her performance was widely praised in the press worldwide, and the role brought her a degree of international fame.
Variety critic Larry Michie wrote in his review of the production, "Joanna Simon was enormously successful as the courtesan. She sang her seductive aria well, and has a body, very fetchingly displayed, that one can easily imagine a nobleman or anyone else paying for." She later reprised the role of Pantasilea at
Lincoln Center when the opera was staged by the New York City Opera in March 1968, and at the
Teatro Colón in Buenos Aires in 1972. She also recorded the part for
CBS Records in 1968 with conductor
Julius Rudel. Also in 1968, Simon portrayed Countess Geschwitz in Alban Berg's
Lulu with the American National Opera Company and conductor
Sarah Caldwell, made her debut at the
Salzburg Festival as Piacere in
Rappresentatione di Anima, et di Corpo, Other opera companies she performed leading roles with on the international stage included the
Grand Théâtre de Bordeaux. That same year she was the alto soloist in Mozart's
Requiem with the
Chicago Symphony Orchestra, the alto soloist in Mahler's
Symphony No. 2 at the
Ravinia Festival, the alto soloist in Bach's
St Matthew Passion at the
Carmel Bach Festival, and was the soloist in Bernstein's
Jeremiah Symphony with the
National Symphony Orchestra with the composer conducting. She also collaborated with Bernstein and the New York Philharmonic that year to perform and record excerpts from the role of Brangäne in Wagner's
Tristan and Isolde. She concluded the 1968/1969 season portraying the title role in Bizet's
Carmen opposite
Placido Domingo as Don Jose with the
Israel Philharmonic and conductor
Zubin Mehta in Tel Aviv. In 1970 Simon sang the role of Irene for the first recording ever made of Handel's
Tamerlano with conductor
John Moriarty and the Chamber Orchestra of Copenhagen. In 1971, she was a soloist with the
Naumburg Orchestral Concerts, in the Naumburg Bandshell, Central Park, in the summer series. In 1972 she was the alto soloist in Mozart's
Coronation Mass and Bruckner's
Te Deum with the
Vienna Philharmonic and conductor
Herbert von Karajan at the
Salzburg Festival; a performance which was broadcast live on radio internationally. That same year, she sang the role of Juliette in Berlioz's
Roméo et Juliette with the
Boston Symphony Orchestra and conductor
William Steinberg, and she performed at
Broadway's
Imperial Theatre in a benefit concert for the
Museum of the City of New York which was staged in honor of
Richard Rodgers' 70th birthday and featured songs of
Rodgers and Hammerstein and
Rodgers and Hart. She performed the role of Carmen with several companies including the Nevada Opera in 1972 and the
Philadelphia Grand Opera Company at the Academy of Music in Philadelphia in 1974. Also in 1972, she created the title role in the world premiere of Thomas Pasatieri's
Black Widow at the
Seattle Opera for her debut with that company. She performed twice more with the Seattle Opera for performances as Dorabella in Mozart's
Così fan tutte (1974) and Charlotte in Massenet's
Werther (1976); the latter a co-production with the
Portland Opera. In 1975 Simon portrayed the heroine Pelagia in the world premiere of
Robert Starer's
The Last Lover at the
Caramoor Music Festival. That same year she used the
Hunter College playhouse for a recital, which was her first in New York after debuting with the New York City Opera (NYCO) 13 years prior. The month before her recital she broke her hip after tripping on a rug, and had to perform while using crutches to get around. She continued to appear periodically with the NYCO over the next several years, appearing as Giuletta in
The Tales of Hoffmann (1980) and Fenena in Verdi's
Nabucco (1981) among other roles. In 1982 Simon performed as the soloist in Prokofiev's
Alexander Nevsky with the
American Symphony Orchestra at Carnegie Hall; a concert celebrating the 100th birthday of conductor
Leopold Stokowski. In February 1983 she performed works by
Richard Wagner,
Gustav Mahler, and
Richard Strauss with the
Brooklyn Philharmonic at the
Brooklyn Academy of Music with conductor
Lukas Foss; including Mahler's song cycle
Kindertotenlieder. In 1984 she performed in her sister
Carly Simon's song "Turn of the Tide" which was commissioned by the
Democratic Party for use in political campaigning. She had earlier performed background vocals on Carly's album
No Secrets (1972) and on her other sister Lucy's album
Lucy Simon (1975). In 1986 she performed in an evening of
chamber music composed by
Gary William Friedman at the
Off-Broadway Vineyard Theatre for a concert entitled "The Him Nobody Knows". That same year she was a soloist in Stravinsky's
Pulcinella at the
92nd Street Y, and starred in Weill's
Mahagonny-Songspiel at Carnegie Hall. In 1989 Simon performed a recital at the
John F. Kennedy Center for the Performing Arts which was one half of the program for a concert entitled "Strings & Sings" with other half featuring the Manchester String Quartet. In 1999 she returned to the stage to perform in a concert of Weill's music at
Weill Recital Hall with soprano Angelina Réaux and baritone
Kurt Ollmann. ==Television appearances and work as a journalist==