Concise AACR2: Concise AACR2: rule 27B: Modifications of existing works

27B. Modifications of existing works

27B1.

Enter a work that is a modification of an existing work under the heading for the new work and make a name/title added entry (see rule 29B4) for the original work if the nature and content of the original has been changed substantially or if the medium of expression has changed.

Examples of such change are:

paraphrases, rewritings, adaptations for children, and versions in a different literary form of written works
revisions of texts when the reviser(s) is named in the chief source and the original author(s) either is no longer named in the title and statement of responsibility area or is named only in the title proper
commentaries when the bibliographic resource is presented as a commentary
adaptations of graphic art works from one medium of the graphic arts to another
reproductions of art works with text when the writer of the text is represented as the author of the work in the chief source of information
alterations (free transcriptions, etc.), paraphrases, and variations of musical works
sound recordings of works by different persons performed by a principal performer or performers ¹
novels, etc., based on motion pictures, television shows, etc.
motion pictures, television shows, electronic resource, etc., based on novels and other texts.

27B2.

Enter any other modification of an existing work under the heading for the original work.

Examples of modifications entered under the headings for the original works are:

musical works by one person performed by another
translations
arrangements of musical works
texts with commentary when the item is presented as an edition of the text
abridgements of, and excerpts from, existing works
illustrated works.

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27B. Modifications of existing works

27B1.

27B2.