Wikipedia:WikiProject Opera/Category guidelines: Difference between revisions

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This page is a '''guide to categorizing opera-related articles'''. [[WP:CATEGORY|Categories]] are sometimes implemented on Wikipedia in an ''ad hoc'' fashion, and can be erratic, with new ones appearing all the time. The [[Portal:Opera/Categories|Opera category tree]] contains all the currently existing categories and their sub-categories. (You can view the sub-categories by clicking on the '''[+]''' next to the category title.)
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'''WikiProject Opera'''
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*'''[[Wikipedia:WikiProject Opera|Main page]]'''
:[[Wikipedia:WikiProject_Opera#Scope|Scope]]{{·}}[[Wikipedia:WikiProject_Opera#How you can help|How you can help]]
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:[[Wikipedia:WikiProject Opera/Frequently performed opera composers|Most frequently performed opera composers]]
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Categories are implemented on Wikipedia in an ''ad hoc'' fashion, hence tend to be erratic. Here are the currently used categories for opera topics:
 
==Operas==
===Basic categories===
All opera title articles belong in:
*[[:Category:Operas]]. For further information see [[WP:DUPCAT|Non-diffusing subcategories]].
 
Operas are further categorized minimally by:
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*[[:Category:Operas by composer]]
;Genre
*[[:Category:Operas by genre]] (which should be plural and in the original language used in standard reference books to avoid confusion). For the purposes of Wikipedia (and indeed other encyclopedias such as [[Grove]]), operettas are considered a subcategory of operas, so, for example, ''[[The Merry Widow]]'' is in [[:Category:Operas]] as well as [[:Category:Operettas]].
;Language:
*[[:Category:Operas by language]]
;Year of premiere
*[[:Category:Operas by year]]
 
===Further categories===
Other categories include [[:Category:Operas by setting|Operas by setting]]; [[:Category:Operas by world premiere ___location|Operas by world premiere ___location]]; [[:Category:One-act operas|One-act operas]]; [[:Category:Unfinished operas|Unfinished operas ]]; [[:Category:Lost operas|Lost operas]]; [[:Category:Operas by source|Operas by source]] (for operas whose libretti are based on plays, novels, films, etc.)
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==Other opera people==
*All opera composers belong in [[:Category:Opera composers]], although they may also appear in other [[:Category:Composer|other composer categories]] as well.
*The main categories for other opera-related biographies are: [[:Category:Opera critics]]&nbsp;• [[:Category:Opera directors]]&nbsp;• [[:Category:Opera librettists]]&nbsp;• [[:Category:Opera managers]]
 
==Other opera-related articlestopics==
Articles which don't fall under any of the below topics can always be included (temporarily) in [[:Category:Opera]]. For further possible categories, see [[Portal:Opera/Categories|the full category tree]] for all opera-related articles.
 
'''Organizations and venues''' (When adding these, please check each category for the appropriate sub-category, if any)
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==Category sorting==
To ensure that articles are listed in the correct order on their category pages, the {{tl|DEFAULTSORT}} tag needs to added at the beginning of the article's list of categories.
 
*The titles of articles are sorted omitting the definite or indefinite article such as "A", "The", "Le", "La", "Les", "Der", "Die", "Das", etc. This is done using a "Default sort" tag, which is placed before the categories. For example [[La naissance d'Osiris]] requires <nowiki>{{DEFAULTSORT:Naissance d'Osiris}}</nowiki>. That means that the opera will file under N and not under L, although the actual article title ("La naissance d'Osiris") will appear in the Category listing under N.
'''Alphabetical order in the listing of operas/people'''
*The default sort title should always start with a capital letter, as lower-case initial letters are filed after upper-case
 
Two other points here: first, the default sort title should always start with a capital letter, as lower-case initial letters are filed after upper-case Z; second, if*If there's a special character or accent early in the title, the default sort title should not contain the special character/accent, for a similar reason. For So, in the same categoryexample, if "Zéphire" isn't changed to "ZefireZephire", it would file after "Zwerg".
The titles of articles are sorted omitting the definite or indefinite article such as "A", "The", "Le", "La", "Les", "Der", "Die", "Das", etc. This is done using a "Default sort" tag, which is placed before the categories. For example [[La naissance d'Osiris]] requires <nowiki>{{DEFAULTSORT:Naissance d'Osiris}}</nowiki>. That means that the opera will file under N and not under L, although the actual article title ("La naissance d'Osiris") will appear in the Category listing under N.
*People have to be sorted in the same way, e.g. <nowiki>{{DEFAULTSORT:Verdi, Giuseppe}}</nowiki>, otherwise Verdi will appear under '"G'" rather than '"V'".
 
Two other points here: first, the default sort title should always start with a capital letter, as lower-case initial letters are filed after upper-case Z; second, if there's a special character or accent early in the title, the default sort title should not contain the special character/accent, for a similar reason. So, in the same category, if "Zéphire" isn't changed to "Zefire", it would file after "Zwerg".
 
People have to be sorted in the same way, e.g. <nowiki>{{DEFAULTSORT:Verdi, Giuseppe}}</nowiki>, otherwise Verdi will appear under 'G' rather than 'V'.