Thanks! I'll see if I can think up a custom setting/formula with that tag! I've found a tutorial here on the forum that looks very helpful. still I wouldn't mind to copy/paste a formula from someone else that works well.
About filesharing: a reasonably large part of my collection is Vaporwave, a genre that of music where everything is basically given away for free on bandcamp and soundcloud so I don't feel too bad about sharing those particular works with fellow music lovers, as none of it was distributed within the music industry to begin with (and given the plunderphonic nature of most of the works, it would never be viable for commercial distribution anyways).