I cannot imagine any of it will be.
Where is this era’s Mozart? This era’s Bach? Or Vivaldi? Or Beethoven? Or Handel?
I have not seen them.
They are around, but unfortunately their works are not the ones commonly being done for mass. I do believe that there is sacred music being composed today that equal the genius of these masters, but I only get to hear them in very, very few parishes. Also, many do not get their works promoted by the influential publishers.
Another problem lies with the state of western art music composition in general. This is something commonly discussed within my group of musician friends. For a time musical composition consisted on what some would consider “clouds of sound” - no beautiful melody line that would be simple to relate. Just these amorphous chords. It became overrun by the extreme intellectuals who were experimenting with various new ways of composing, which is interesting in it of itself, but by no means enjoyable or inspiring to the average person or even the average musician. I sometimes doubt the Bach would even enjoy it. Technically, it’s very creative, interesting, and extremely intellectual, but aesthetically it isn’t nice and did nothing for the soul. I think this hurt composition for beauty’s sake for a number of years in the 20th century. Those composers who actually did want to create something beautiful and genius were not en vogue and belittled, yet they still composed.
Then came the meshing of popular style genre music into sacred style genre around the same time of this void in compositional writing. Had it been a 100 years before or 50 years before then might have just fallen back on previous composers’ works, but because the doors were open to the trendy styles of the day, those styles filled the void instead. (This is just my theory on it)
For centuries the popular styles of the day and the sacred writing styles were rarely mixed because it was always understood that there was sacred music and then there was popular music. Also, the quality of many compositional works was excellent that there was no need to substitute. There was naturally garbage sacred works written throughout those centuries as well, but it did get thrown out, as I believe will happen eventually to what is being produced today. That is also not to say no “popular” melodies made it into the sacred repertoire, because it most certainly did, although you had very talented composers transforming it into something appropriate for mass and something not recognizeable as a local pub drinking song, let’s say. There are talented musicians out there today who can do the same thing, but I truly believe that it is much harder for them to get their works published or at least performed.
Because of the meshing of these styles of music today, we now have to weed out more different genres of music and work harder as to determine what is truly appropriate and what is not.
I hope I’m making sense here.