An initial TSV on Christan Hymn and CCLI Song Numbers.
Any
Weight key
< 100 - an impartial but likely match (the title is the same + most authors match)
100 - Title and author exactly match
900 - 0 search results returned from CCLI
Column headers
Christian Hymn number | CCLI Song number | is Public Domain | weight | Title | Author and copyright | Metre