First: so what you are referring to are specific Mass settings that use Gregorian Chant, not Gregorian Chant itself. Like I said before, Gregorian Chant is a style of music and singing. It would be like bluegrass, it is a specific style of music that falls in a broader category of music. (SAT time: __________ is to chant as bluegrass is to country.)
I assume you have some knowledge and intellect on the subject when I continue on with this discussion and would expect the same courtesy in return, as mentioning of “SAT time” is a bit silly and would only be relevant if it is referring to other high school students or college students who may still find it important. I’m a professional classically trained musician who did part of my training at the Mozarteum conservatory in Salzburg. I’ve been fortunate and blessed to have performed in both Europe and the U.S. in secular venues because of where I trained and who I worked with (another blessing through God and through my hard work, having worked and studied with some internationally respected musicians and coaches), and have worked extensively in sacred music within liturgy especially with people who have been well trained in it. So I am very aware of music in general and have a good handle on music history as well as Church music history. I know what Gregorian Chant is and I am also aware of other forms of chant and how it is used. I wouldn’t usually get my credentials out like this, but it appears that you may have read me as someone who didn’t know what I was talking about.
I have heard secular lyrics done in the style of Gregorian Chant, it does exist. (Music majors at University music programs do it quite often because it is hard to get the words to fit just right and shows a real command of the music.)
You may have
heard people like your music students or even former/current classmates set secular text to Gregorian chant as an exercise, but are they published? If you can show me published music set to Gregorian Chant style, then great, I will grant you that. That said, if there is any, the majority of my colleagues and musician friends would most likely not know about it. No published work that I know of exists and I buy a lot of sheet music, as well as own about 600+ cds of music from all various centuries and styles of music.
The style can be used to sing many things and anything that is desired.
Yes, it can be, but again, I know of no published and used versions set to it either than sacred text, besides that of smartalecks I know who was joking around (such as former classmates of mine in music programs or just friends sitting around having fun singing organum - which as you probably know, is something classically trained musicians especially in church music like to do for fun. My husband and I do it all the time with our friends - and trying to be like PDQ Bach) and those music majors which you spoke of who have done it for exercises. Various forms of chant, the Gregorian style included, has been used mainly as a musical source of prayer and worship. I assume that you know this as well, as you appear to have some knowledge or may even have majored in it?
It is for this reason that the USCCB (or the other appropriate Conference for those in other countries) approves music (and if they deem necessary specific songs) before use in Mass. (All the Hymnals that we in the United States use have been approved by the Bishops.)
This is something most people involved in music liturgy know.
If you are referring to Mass settings in Gregorian Chant you should state that, since it is a wildly different statement than saying Gregorian Chant. You can not expect that everyone on this forum can read you mind. I get yelled at quite often because I used the term Eucharistic Minister to refer to Extraordinary ministers and assumed everyone would know who I was talking about (as they all did) but was chastised because I did not use term Extraordinary Minister of Holy Communion. Same situation.
It’s really not the same situation. If it were, then the Church, herself, as well as our Holy Father and previous Popes before him, would not just refer to it as “Gregorian Chant” in various documents. When it is discussed or written about, it is almost always referred to as just Gregorian Chant. You are the first person from all the colleagues and non-musicians I know and worked with who would even think that when the term “Gregorian Chant” was used, it could mean more than just what is used at Mass or as Sacred music. This is even in regards to non-Catholics. When you mention Gregorian Chant, they immediately assume sacred music or even music used in the Catholic mass. EM and EMHC is a different situation because they are two distinct things, are referred to both in different situations, writings and discussions, and that is why many people do chastise or correct those who use the wrong terminology.
That said, if you are scrupulous about the usage of “Gregorian Chant”, then by all means, make the distinction for your own peace of mind. I have nothing against that, but to nitpick on others is a waste of energy when most people don’t think this way with this kind of scrupulosity.