Wikipedia:Naming conventions (pieces of music)

As a general rule, when naming articles about pieces of classical music, use the most common form of the name. Do not include nicknames except when the work is almost exclusively known by its nickname (for example, Franz Schubert's Trout Quintet[?]).

• If the name of the piece is unique to that one piece, then the title should be the name of the piece alone. For example, Enigma Variations, War Requiem, Piano Phase.
• If the name of the piece is shared by another piece or pieces, include the composer's surname in parentheses following the name of the piece. For example Concerto for Orchestra (Bartok), Concerto for Orchestra (Lutoslawski)[?]; Violin Concerto (Beethoven), Violin Concerto (Berg).
• An extra level of disambiguation may be required if one composer has written several works with the same title (this is particularly true of works with generic titles like "Symphony" or "String Quartet"). The title should refer to the work in whatever way is most common in other publications. Normally, this will mean adding a cardinal number, but there are other possibilites, for example:
  • Cardinal number: Symphony No. 7 (Nielsen)[?], Symphony No. 40 (Mozart)[?], Symphony No. 1 (Mahler) - note that a period follows the "No".
  • Catalogue number: Piano Sonata, D. 958 (Schubert)[?], Piano Sonata, K. 331 (Mozart) (see Opus number for which composers these apply to) - note that a period follows these abbreviations.
  • Opus number: String Quartet, Opus 76, No. 5 (Haydn)[?]
  • Key: Prelude in C sharp minor (Rachmaninov)[?]

In an article's text, major pieces should be in italics, while smaller pieces and individual movements from major works should be in quotes - "Mars" is a movement from Gustav Holst's The Planets (see Wikipedia:Manual of Style for more).