The question is a little confusing. But I think the answer is that most of the church music that I linked is from the DL (apart from the two paraliturgical hymns), and, I suspect that all is Carpathian music of more recent times.
Carpathian prostopinije is used for the DL and for other services. Over the years - really going back to the first millenium, these chants have continuously evolved. There is a bit of scholarship on this evolution, but only a bit (someday I want to use bioinformatics methods to study this evolution.)
From the styles you could say that the prokimenon and irmoi tones are ancient, and the tones for the troparia, kontakia, and stichera have components that are several centuries old. The most widely used hymns settings, whether they are hymns from the liturgy or not, are more recent and continually under development.
The choir music in the links of BCC also cover a range of times from 18th through 20th centuries.
