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ProVobis
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Jubilate Deo (in Latin, of course) is also in the public domain, available on a free of charge basis to all Catholic parishes as stated by Pope Paul VI.True, but the Vulgate and Douay Rheims are in the public domain. Of course, those aren’t being used in at most Masses today. But the EF is different – I’d guess that it uses the Vulgate and that the texts used in the Mass parts and hymns would be in public domain.