This is the “pure” Vatican Edition—technically the only version of the rhythm allowed by Church documents!
Pothier De Caetero 1906
Ostrowski Vs. Weaver: Solesmes Rhythm, Gregorian Semiology, Dom Mocquereau, Dom Pothier, Mensuralism, and more!
From one of my composition teachers…
I recently conducted an experiment…with surprising results.
The «Kyriale» contains very few melismatic morae.
The “white notes” (as Dr. Joseph Lennards called them) are quite sloppy, which really took me by surprise.
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