Disputatio Categoriae:Operae pastorales

Singular or plural?

Hmm. Should categories relating to (the concept of) opera be singular or plural? Most concepts expressed in discrete entities have plural categories, but some do not; for example Categoria:Opera seria, which is singular in the other Roman-alphabet wikis: da:Kategori:Opera seria, en:Category:Opera seria, nn:Kategori:Opera seria. And of course the categories named for biological genera, and for individual persons, are singular. IacobusAmor 14:13, 24 Decembris 2010 (UTC)

This problem is the reason why I was longing for you to start these categories and didn't dare do it myself. We have a general preference for plural if the plural makes sense; but really I think you should decide and others will follow. Andrew Dalby (disputatio) 14:18, 24 Decembris 2010 (UTC)