BIZET, Georges (1838-1875)
- Carmen (1875)
- May 14, 16 & 18, 2008 – Intermountain Opera (Opera Montana)
- April 30, 2022 – Helena Symphony (Semi-Staged Concert Setting)
DONIZETTI, Gaetano (1797-1848)
- The Daughter of the Regiment (1839)
- October 14 & 16, 2016 – Intermountain Opera (Opera Montana)
- Don Pasquale (1842)
- May 17 & 19, 1991 – Intermountain Opera (Opera Montana)
- October 9 & 11, 2015 – Intermountain Opera (Opera Montana)
- The Elixir of Love (1832)
- May 8, 10 & 12, 2002 – Intermountain Opera (Opera Montana)
- Lucia di Lammermoor (1835)
- May 12, 14 & 16, 2004 – Intermountain Opera (Opera Montana)
GILBERT, William Schwenck (1836-1911) & SULLIVAN, Arthur (1842-1900)
- H.M.S. Pinafore (1878)
- October 10, 11 & 12, 2014 – Intermountain Opera (Opera Montana)
- The Mikado (1885)
- October 13 & 15, 2006 – Intermountain Opera (Opera Montana)
- The Montana Mikado (1885/adapted Soren KISIEL 2022)
- February 4, 5, 6, 11, 12 & 13, 2022 – Intermountain Opera (Opera Montana)
- The Pirates of Penzance (1879)
- October 14 & 16, 2005 – Intermountain Opera (Opera Montana)
- October 12 & 14, 2018 – Intermountain Opera (Opera Montana)
GORDON, Ricky Ian (1956-)
- 27 (2014)
- October 11 & 13, 2019 – Intermountain Opera (Opera Montana)
GOUNOD, Charles (1818-1893)
- Faust (1859)
- April 24 & 26, 1992 – Intermountain Opera (Opera Montana)
- Romeo et Juliette (1867)
- May 8, 10 & 12, 2013 – Intermountain Opera (Opera Montana)
HUMPERDINCK, Engelbert (1854-1921)
- Hansel and Gretel (1893)
- October 14 & 16, 2011 – Intermountain Opera (Opera Montana)
LEONCAVALLO, Ruggero (1857-1919)
- I Pagliacci (1892)
- May 18, 20 & 22, 2005 – Intermountain Opera (Opera Montana)
MASCAGNI, Pietro (1863-1945)
- Cavalleria Rusticana (1889)
- May 18, 20 & 22, 2005 – Intermountain Opera (Opera Montana)
- May 4, 2024 – Helena Symphony (Semi-Staged Concert Setting)
MENOTTI, Gian Carlo (1911-2007)
- Amahl and the Night Visitors (1951)
- December 22 & 23, 1991 – First Presbyterian Church, Bozeman
MOORE, Douglas (1893-1969)
- The Ballad of Baby Doe (1956)
- October 9 & 11, 2009 – Intermountain Opera (Opera Montana)
MOZART, Wolfgang Amadeus (1756-1791)
- Cosi Fan Tutte (1789)
- October 12 & 14, 2012 – Intermountain Opera (Opera Montana)
- Don Giovanni (1787)
- April 25 & 27, 1997 – Intermountain Opera (Opera Montana)
- May 13 & 15, 2016 – Intermountain Opera (Opera Montana)
- The Magic Flute (1791)
- May 16, 18 & 20, 2007 – Intermountain Opera (Opera Montana)
- The Marriage of Figaro (1786)
- June 23 & 25, 1989 – University of Arizona Opera
- May 10, 12 & 14, 2000 – Intermountain Opera (Opera Montana)
- May 13 & 15, 2022 – Intermountain Opera (Opera Montana)
PIAZZOLLA, Astor (1921-1992)
- Maria de Buenos Aries (1968)
- November 8, 9, 9 & 10, 2024 – Opera Montana
PUCCINI, Giacomo (1858-1924)
- Gianni Schicchi (1918)
- May 15 & 17, 2015 – Intermountain Opera (Opera Montana)
- La Boheme (1895)
- April 28 & 30, 1995 – Intermountain Opera (Opera Montana)
- May 13, 15 & 17, 2009 – Intermountain Opera (Opera Montana)
- April 25, 26, 27 & 28, 2024 – Intermountain Opera (Opera Montana)
- Madama Butterfly (1903)
- April 30 & May 2, 1993 – Intermountain Opera (Opera Montana)
- May 16, 18, 20, 2012 – Intermountain Opera (Opera Montana)
- Manon Lescaut (1892)
- May 10, 12 & 14, 2006 – Intermountain Opera (Opera Montana)
- Suor Angelica (1917)
- May 15 & 17, 2015 – Intermountain Opera (Opera Montana)
- Tosca (1899)
- May 18 & 20, 1990 – Intermountain Opera (Opera Montana)
- May 12, 14 & 16, 1999 – Intermountain Opera (Opera Montana)
- May 12 & 14, 2017 – Intermountain Opera (Opera Montana)
- May 4, 2019 – Helena Symphony (Semi-Staged Concert Setting)
REDLER, Zach & DYE, Jerre
- The Falling and the Rising (2018)
- November 4, 5 & 6, 2022 – Intermountain Opera (Opera Montana)
ROSSINI, Gioacchino (1792-1868)
- The Barber of Seville (1813)
- May 11, 13 & 15, 2011 – Intermountain Opera (Opera Montana)
- La Cenerentola (1816)
- May 16 & 18, 2014 – Intermountain Opera (Opera Montana)
STRAUSS, Johann Jr. (1825-1899)
- Die Fledermaus (1874)
- October 10 & 12, 2008 – Intermountain Opera (Opera Montana)
TCHAIKOVSKY, Pytor Ilyich (1840-1893)
- Eugene Onegin (1879)
- April 26 & 28, 2019 – Intermountain Opera (Opera Montana)
VERDI, Giuseppe (1813-1901)
- Aida (1870)
- May 14, 16 & 18, 2003 – Intermountain Opera (Opera Montana)
- Falstaff (1893)
- May 11 & 13, 2018 – Intermountain Opera (Opera Montana)
- Il Trovatore (1853)
- April 26 & 28, 1996 – Intermountain Opera (Opera Montana)
- May 12, 14 & 16, 2010 – Intermountain Opera (Opera Montana)
- La Traviata (1853)
- May 13, 15 & 17, 1998 – Intermountain Opera (Opera Montana)
- October 11 & 13, 2013 – Intermountain Opera (Opera Montana)
- Rigoletto (1851)
- May 9, 11 & 13, 2001 – Intermountain Opera (Opera Montana)
- May 5 & 7, 2023 – Intermountain Opera (Opera Montana)