I use the ICKSP propers printed out in letter paper
In syllabic passages, yes, but the Dies irae isn't the best examples, since the Solesmes method prefers the ictus on word finals when possible. Look at today's introit (LU-446). No ictus is marked at et omnis lingua. The ictus cannot be placed on -gua, since the following note is ictic (rule 2). Do we place the ictus on -mnis, making -mnis lingua a ternary compound beat, or count backward by two and place the ictus on the first note of omnis, making et non-ictic? Or one might even place the ictus on et and make it the beginning of a ternary compound beat without breaking any hard and fast rule. The modern notation edition of the Liber takes the second option, so that's what I go with, since it was presumably edited by the same monks who edited the Gregorian notation.But where it probably confuses people, to your point, is where you could either count something after a bar, like in the Dies Irae, as a one-two or a silent one then two.
Do we place the ictus on -mnis, making -mnis lingua a ternary compound beat...
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