Giuseppe Verdi - Un Ballo In Maschera 1957 (Book+2 CD) / Teatro Alla Scala / Maria Callas Giuseppe de Stefano / Directed by Margherita Wallman / Conductor Gianandrea Gavazenni / 2012 CD

• Is Discontinued By Manufacturer ‏ : ‎ Yes
• Product Dimensions ‏ : ‎ 7.6 x 5.5 x 0.75 inches; 13.31 Ounces
• Manufacturer ‏ : ‎ La Scala
• Original Release Date ‏ : ‎ 2013
• Date First Available ‏ : ‎ April 26, 2012
• Label ‏ : ‎ La Scala
• Country of Origin ‏ : ‎ France
• Number of discs ‏ : ‎ 2

Un ballo in maschera ('A Masked Ball') is an 1859 opera in three acts by Giuseppe Verdi. The text, by Antonio Somma, was based on Eugène Scribe's libretto for Daniel Auber's 1833 five act opera, Gustave III, ou Le bal masqué.

The plot concerns the assassination in 1792 of King Gustav III of Sweden who was shot, as the result of a political conspiracy, while attending a masked ball, dying of his wounds thirteen days later.

It was to take over two years between the commission from Naples, planned for a production there, and its premiere performance at the Teatro Apollo in Rome on 17 February 1859. In becoming the Un ballo in maschera which we know today, Verdi's opera (and his libretto) underwent a significant series of transformations and title changes, caused by a combination of censorship regulations in both Naples and Rome, as well as by the political situation in France in January 1858. Based on the Scribe libretto and begun as Gustavo III set in Stockholm, it became Una vendetta in domino set in Stettin, and finally Un ballo in maschera set in Boston during the colonial era. It became one of the most frustrating experiences of Verdi's career.

From the mid-20th century, it has become more common for the setting to revert to its original 18th-century Stockholm location. A re-creation of the original Gustavo III has been staged in Sweden.