how the * do I make use of all the music album/artist fields in Kodi ?

have been googling all over the place – can anyone advise on how to use/exploit all those useful looking music album/artist fields Kodi can recognize:

ie all that triva type stuff here:

http://kodi.wiki/view/NFO_files/Music#Mu…g_XML_data
(band formed date, instruments used, artist bio, label, etc)

obviously I’ve taken first steps and tagged files with Musicbrainz … how about the rest .. is there any known way to scrape or a manual way to conveniently get data into these fields?

have read Kodi wikis, reddits, youtube vids etc but not seen much discussion ..

thanks