Macbeth is an opera in three acts, with music by Ernest Bloch to a libretto by Edmond Fleg, after the eponymous play of William Shakespeare. Bloch composed the opera between 1904 and 1906, but it did not receive its first performance until 30 November 1910 by the Opéra-Comique in Paris. Alex Cohen has written of quarrels within the cast that contributed to the opera's poorly received premiere.
Guido Gatti has compared elements of Bloch's opera to the music of Modest Mussorgsky. He has also written of the different treatments of the Macbeth story by Giuseppe Verdi and Bloch in their respective operas on the subject, with Verdi being more "realistic" and Bloch being more in keeping with the symbolist era in art at his time.
After the premiere production, the opera was staged in 1938 in Naples, but was then banned on orders of the Fascist government. Subsequently, the opera was produced in Rome in 1953, and in Trieste.
The opera was staged, in English, at the Juilliard School of Music in New York under the direction of John Houseman, in May 1973. P. H. Adler conducted; singers included L. Carlson, H. Barnsley, R. Termine, F. Burchinal, M. Li-Paz and W. White. 
- Banquo, tenor
- King Duncan, tenor
- Lady Macbeth, mezzo-soprano
- Porter, baritone
- Lennox, baritone
- Macbeth, baritone
- Macduff, bass
The story is essentially that of the Shakespeare play, with the five acts compressed to three. The opera contains seven tableaux, with the prelude comprising the first tableau, and each of the three acts containing two tableaux.
Portions of the opera have been recorded with Heinz Rehfuss and Lucienne Devallier, with Ernest Ansermet conducting, and in another recording, with Inge Borkh. More recently, complete recordings conducted by Alexander Rumpf and Friedemann Layer have been produced.
- Musicales Actes Sud OMA34100: Jean-Philippe Lafont, Markella Hatzian, Jean-Philippe Marlière, Jacque Trussel, Christer Bladin, Philippe Georges, Marcel Vanaud, Sophie Fournier, Hanna Schaer, Ariane Stamboulides, Wojtek Smilek, Annie Varville, Franck Bard, Ferijs Millers, Andris Gailis; Orchestre Philharmonique de Montpellier Languedoc-Roussillon; Choeur de la Radio lettone; Friedemann Layer, conductor
- Cohen, Alex, "Ernest Bloch's Macbeth" (April 1938). Music & Letters, 19 (2): pp. 143-148.
- Brody, Elaine (January 1982). "Romain Rolland and Ernest Bloch". The Musical Quarterly 68 (1): 60–79.
- Gatti, Guido M.; Translated by Theodore Baker (January 1921). "Ernest Bloch". The Musical Quarterly VII (1): 20–38. doi:10.1093/mq/VII.1.20.
- Gatti, Guido M.; Translated by Theodore Baker (January 1926). "Two Macbeths: Verdi-Bloch". The Musical Quarterly XII (1): 22–31. Retrieved 22 April 2011.
- Chapman, Ernest, "Ernest Bloch at 75" (Spring 1955). Tempo (New Ser.), 35: pp. 6-9, 11-12.
- Schonberg, Harold C. (11 May 1973). "Macbeth, Bloch's 1909 Opera, Has a Premiere Here". The New York Times.
- UCL News
- Fregosi, William (2001). "Macbeth. Ernest Bloch". The Opera Quarterly 17 (2): 340–342. doi:10.1093/oq/17.2.340. Retrieved 26 September 2007.