This is great, Jeff. Do you have these paradigms for all modes? It might be fun to make up different text for each mode (a la Ut queant laxis) as a memory aid. I've not yet gotten around to doing that myself.
I have one Liber with modern notation and Latin rubrics (copyright 1924 - printed 1947). In the front is a detachable sheet with the "Octo Toni Psalmorum" - 4"X6 1/2" - printed in Belgique - Desclee & Cie. In modern notation, it shows not only the incipit and flex for each psalm tone (primus, secundus, tertius .... (same paradigm as shown above for each mode) but also shows the incipit for the magnificat of each tone and even includes the Tonus Peregrinus with the words "In exitu Israel..." instead of the number of the tone. No "Differentiae" for the psalm tone endings are shown.
I think also that there should be a better looking font available for the neumes that looks more 12 and 13th century. What you've shown is more 14th century style. I often enjoy the neumes which are less boxy and with less perfectly pointy 4 cornerd squares. Less gothic, more romanesque.
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