Check my understanding of adding Music to my library (first time)



Been reading a lot about music library, music artwork, musicbrainspicard, etc as I’m attempting to add Music to my Kodi library for the first time. Please do a sanity check for me before I go down this bunny trail!
 
I purposely have my media center (Unraid OS with all movies/tv shows data stored on it) on an internal WIRED network and not connected to the internet. I “can” connect to internet if needed but prefer not to. I have 2 Media boxes (in 2 different rooms) to run Kodi on same internal wired network to access movies/tv/etc. Box 1 is Minix Neo U9H (CoreElec) and Box 2 is ODROID-N2+ (CoreElec). Movies are each in their separate folders with all artwork/nfo files stored inside each movie folder locally. Same for TV shows. This setup has worked flawlessly for many years. Time to add music…
 
Check my understanding please:
1) Get all your music labeled and tagged using musicbrainspicard correctly. (music filenames aren’t important but tagging definitely is)
2) Structure folders like: Artist->Albumname(year)->Songs. Not required but not a bad idea (I already have most this way).
3) Not 100% sure on compilations any/or any playlists I want to make? (Think… “100 classic rock songs” from a compilation CD or a playlist I would want to make “Classical Music” or “Christmas Music”). Need guidance on these issues.
4) Create an “Artist Information Folder”, since I want to have all the pretty pics and nfo files to be stored locally? Correct? Yes/no?
5) Connect to internet…Scan first to take embedded tags and artwork into internal Kodi database, then additionally scrape (using Kodi’s built in music scrapper? Yes/no/not sure?)  any stuff that was missing and it will download from internet.
6) How to get all artwork/nfo’s for music that was pulled from internet and then store it locally? I read about Artwork Dump but was confused about which version this works on,  it is outdated, or Kodi’s can now do this as default? Kinda lost on this issue. Need guidance please.
7) Disconnect from internet now that all artwork is stored locally.
8) For future onesy-twosey additions of songs or albums, repeat steps 1-7, correct? Yes/no?

I tried doing my homework first. Thank you for helping out a noob.