When I opened the score I was surprised not to read a Lutheran chorale, a chorale prelude, or a cantata, but a mass with Latin text (well, Greek at first

Actually, the page was named "Missa super chorale: Christ lag in Todes Banden (Zachow, Friedrich Wilhelm)" a few weeks ago.
I'm not comfortable with the actual work page title: indeed it is not the chorale, nor a cantata on its text (like BWV 4), but another work using the chorale's melody either as a fugue subject or as a cantus firmus (both cases occur).
What are the guidelines for such a paraphrase mass?
Personally, I would prefer the original title, or something like:
Missa super 'Christ lag in Todes Banden'
Mass on 'Christ lag in Todes Banden'
'Christ lag in Todes Banden' Mass