In the spirit of renewal, solemnity, and active participation, here is a plainchant version of the Divine Praises that any congregation could sing.
UPDATE: Obscure and beautiful Latin version has surfaced!
I just heard from Dr.Peter A. Kwasniewski of Wyoming Catholic College. He has forwarded me a real gem.
He writes:
In an old chant book published about 50 years ago that fell into my possession, I found a little scrap of paper inserted, with the Divine Praises in Latin, set to a simple chant melody. The period is well captured in the faded typewriter characters.