When to create a new record for music scores

See also the general instructions for when to create a new record.

	Major differences: Create a new record	Minor differences: Use an existing record
Title, subtitle, or parallel title	A difference in the title, or a difference in the subtitle on the chief source of information	A difference in the subtitle, when neither subtitle is present on the chief source of information
Statement of responsibility	A different composer, arranger, illustrator, or other such responsible person	A difference in the form of a person's name
Edition	A difference in edition of the style: "Rev. ed.," "Newly illustrated ed.," "2nd ed.," "1st American ed.," and so forth	A difference in edition of the style: "1st paperback ed.," "2nd Random House ed.," and so forth
		When one has the edition statement "1st ed." and the other has no edition statement or an edition statement in the above category
		A difference in edition for foreign language material (especially Spanish), because a word that translates as "edition" can more often mean "printing" than "edition"
Type size	A significant difference in type size, such as: standard print vs. large print, "larger print"1
	A difference in note size, such as normally sized notes vs. "Big note" version
Musical presentation	A difference in the musical presentation (e.g. full score vs. miniature score, full accompaniment vs. melody line only)	A difference in the presence or absence of a musical presentation statement
	A difference in the key or time signature
	A difference in the vocal range or instrumentation
Publisher		A difference in publisher
Dates		A difference in the publication, copyright, printing, or distribution date, if there is no indication that this represents a difference in the content
Dimensions	A difference in height or width of more than 2 cm.	A difference in height or width of 2 cm or less.
Construction and Binding	A difference in construction such as board pages, etc.	One is hardcover and the other is paperback or spiral-bound
Pagination	A difference in pagination of 10% or more	A difference in pagination of less than 10%, if there is no indication that this represents a difference in content rather than minor differences in type size, differences in where page breaks occur, or whether a final page is unnumbered
Content	A difference in the primary content, such as a new piece of music, illustrations vs. no illustrations, etc.	A difference in the order of songs
	A difference in additional material, such as foreword, afterword, or interview with the composer	A difference in insignificant additional material, such as a brief, promotional foreword that has no appreciable content
	A difference in accompanying material that is integral to the intended usage of the item in hand	A difference in accompanying material that is promotional or advertising in nature, seems to be intended as a free give-away, or which is otherwise not integral to the intended usage of the item in hand
Series		A difference, addition, or removal of a series statement2
ISBN		A difference in ISBN
Cover		A difference in the picture on the cover

1. Always make sure there is an edition statement in the local record indicating large print material, using "[Large print ed.]" if there is not an edition statement on the item itself.
2. When there is a new series, add a 500 note indicating the new series and a 440 or 490/8XX heading for the new series.