If you are looking for collections of devout songs from that region or era, you might find these platforms helpful:

However, there is no widely recognized official document or "useful report" under this specific name in public academic, professional, or government databases. The phrasing suggests it may be:

A file name from a document-sharing platform (like Scribd or Academia.edu) where users often upload curated lists of lyrics or sheet music. Related Resources for Religious Songs