score licence questionable, repository licence impossible

[mirabilos]

The whole-repository licence https://github.com/josquin-research-project/jrp-scores/blob/main/LICENSE.txt says CC-BY-SA 4.0 but links to CC-BY-NC 4.0 so neither of them is granted with confidence.

It says to look at the individual works for licences, but e.g. Jos2812 doesn’t seem to have one.

But then, the mere digital form of the musical pitches and durations of such old scores is almost certainly not copyrightable, is it? Do you assert copyright on these?

From a Free Sheet Music movement point of view, publishing the actual digital scores under CC0 would be really welcome (but of course I can but make suggestions). The other CC licences all have… issues.