This is really nice..
We sing this creed in a litany-like form in procession at Walsingham (and, probably, throughout the Ordinariate) every Trinity Sunday - but, of course, in Old Church English. Your setting is quite beautiful. When do you envision it being sung. In many Lutheran churches this creed is recited every Trinity Sunday. I have never heard of it being used liturgically at a Catholic chruch.

As we do it it is sung in procession in place of the processional hymn, the priest singing the first line and the people the second and so on.

It sings very very well. Singing it, I learned something about the rhetoric of the text, especially its repetitions expressive of the hierarchy in the Godhead -- thanks for that. And choosing mode IV is so right.

As far as use -- it could also be used extra-liturgically, even at sacred concert. For it seems to be a composition in honor of the text -- and of the Holy Trinity!

(If there be one small thing that might bear adjustment it's that I found the ends of phrases sometimes having two dotted puncta (per-só-nas) and sometimes the bipinctum followed by one dotted (in-cre-á-tus). I sing those two neumes differently, and I found the doubled dotted one a little too heavy sometimes, and I wanted to sing it the other way.)

I hear it in mode IV because you recite most of the time on la. You do go well above the reciting tone in the middle, praising the Incarnation -- so maybe saying III is better for that. You quote the Te Deum a couple of times... and that's generally said to be in mode III. But the whole last page is surely mode IV. It's the cadences of those two modes, especially IV... the final just under the 2 degree (mi-fa)... speak to me of eternal, Divine energy, watchful, never sleeping, burning charity.

Ahem.

I prefer the bipunctum cadence because, again, it seems to have more energy. Singing I reiterate those two notes as two light puncta, without a trace of mora vocis, so even if there's a dot on the last note, the melody is ready to get going again on the next phrase. When you use the two dotted notes, it's emphatic, and effective, as at Christus and homo.

My impression, anyway.

@Andrew_Malton

Yes, what you say makes sense to me and I looked at a couple of texts as well. Also, when I first set out to make this I did reference the Te Deum, so keen eye on that, I wanted it to harken back to that text of praise to God, but also as it was a mode 3 chant as well. The more noticeable thing to me was the Te Deum hovers more around "do", but considering the text size of the Athanasian Creed, it was more comfortable to make the more psalm verses on "la"... Yes indeed, it can be classed as mode IV.

And could I ask you to suggest other areas where it would be better to utilize a bipunctum followed by a doted one please? This would help me immensly.

Hopefully I can apply some of the suggested corrections at some point after I am back from Mass today.

@ Gamba

I can look at adding numbering to the verses, I thought about trying to avoid static lines, but sometimes the following verse more or less would not sound right to me because of the inflections of the wording and I (hopefully) try to make the plainchant follow this in a natural way. I'm also trying to see a good and better format using Source and Summit.

My Liber Usualis indicates that the Athanasian Creed is sung on Trinity Sunday at Prime, not during the Mass.

@Chrism

Would love to see accent marks on the Latin text. Also, I guess I'm used to seeing notes left aligned on the vowel as opposed to centered on the syllable.

I'll see if that can be done as well (I agree), I'm not sure if there's a control for placing notes on Source & Summit; Maybe that can be done using GABC, but I don't have any experience using that.

Is it surprising (given that this Creed is sung at Prime) that the reformers wanted to abolish/suppress Prime?

@sdtalley3 - I think the Latin alignment option in S&S should work? Alternatively, yes, there is a vowel lyric centering option on Gregorio.

As far as accents go, the legacy Illuminare editor available from the S&S team makes it easy to accent vowels...just place your cursor to the right of the vowel and press the apostrophe (') key!

I have made some corrections to the Creed to get rid of some of the static lines (not all, but most), and overal corrections to help the flow. I wasn't able to change the centering of the punctums left of the vowel instead of centering, so maybe someone can explain that one to me. Overall I'm pretty content. If anyone wants the word file I used for Source and Summit I can send that as well, and I didn't include accent marks because I'd have to include that word by word.

The new PDF replaces the old one at the top of the thread. but I'll include it here as well with the word .

Thanks all for the input, and if anyone wants to make an edition with a cleaner view, go right ahead.