OK thanks @Shamino , that clarifies that option. Technical writing is not easy and that one I never found understandable. Requires some unspecified inside/tech knowledge.
We’re expecting hot weather this week so maybe I’ll stay indoors and work on my home network project and organizing music, photos, etc.
→ New Question: Music and other apps that could work with the originals in Finder, would be able to extract some info from the file to determine its genre from the internet, for instance? Hm. I suppose that would depend on manner of ripping/source, or? Tracks purchased from Apple or others might have that built in, but the hundreds of home-ripped (in iTunes) CD tracks would not, or is it more complicateder?