Here are some examples of my LaTeX-produced materials, with the score for metrical tunes produced in Musescore Studio 4.

I am thinking about putting some of this stuff in a GitHub repository, but I need some time to work on that. I'll update when that happens.

For those who already know a little bit about LaTeX: The base of these documents is the same as the weekly Vespers booklet (for those I add two staples on the side to the one added by the printer, because I think a book-like format is useful, but a booklet folded in half is too small for some of our parishioners, and letter is not too big for anyone; for Benediction, that's a hassle).

I have a preamble file for letter paper that has the same packages and similar commands as those for other formats (I could, but don't, mess with conditionals to change paper size with the geometry package; I just do that with that package, so I have something like preamble.tex and preamble_letter.tex (can change to A5 etc.: those can be in a directory like "Gregorio" above the Vespers_Benediction folder for example, or they can be in the same directory, just adjust the relative path accordingly)

I call gabc files from a score folder, and psalm tex files from a psalm folder (for Vespers, worth mentioning here anyway). Both are in my Sunday_Vespers directory (unfortunately one score directory in the Gregorio directory is not really possible, because it — or TeX — struggles to go up and then back down). I have a NewDocumentCommand modifying gregorioscore that calls the files from that folder. Same for a command that calls the psalms and puts them in a two-column, bilingual format with a list (using enumitem package and enumerate environment).

I have special commands to make bilingual texts work. I will probably make a NewDocumentEnvironment to make the otherlanguage environment work mire cleanly.

As I said in another thread, I make metrical hymns in MS 4 and use graphicx to insert a cropped PDF.

I've attached what I thought would be representative of what we have done or are planning to do on Sundays after Vespers and at weekly adoration. We say the Litany of the BVM in May and in October, the Litany of the Sacred Heart in June and on First Fridays (we say the act of reparation and omit the weekday prayers in that case, on Friday), the Litany of Saint Joseph in March, the Litany of the Holy Name in January, and the Litany of the Precious Blood in July. Those are the devotions mentioned in italics, on separate sheets.

We just tried out the Maredsous Divine Praises last week. I think that we may well keep them.

(Edited to make things more clear and to add some more comments.)

(Edit too: Github, with some other goodies.