Wikipedia:Naming conventions (operas)


 * The name of the opera should be in its original language except:
 * When the opera is commonly known in English-speaking nations by another title (i.e. The Marriage of Figaro).
 * When the opera's full original title is widely known in an abbreviated form (i.e. I Lombardi).
 * Capitalization
 * See Naming conventions (capitalization).
 * Following the style used in the most recent editions of New Grove Dictionary of Music and Musicians, New Grove Dictionary of Opera, The Oxford Dictionary of Opera and The Viking Opera Guide is usually unproblematic.
 * Disambiguation
 * In order to avoid ambiguity, the word opera is added to the title in parentheses, so for example Macbeth (opera) refers to the work by Verdi to distinguish it from Macbeth which is the play by Shakespeare.
 * If there are two (or more) operas with the same title, the second (and subsequent) works take the name(s) of the composer(s) in parentheses, so for example Otello (Rossini) is differentiated from the more famous opera of Verdi which is simply Otello.