Selfhosted

Sorting a music library is a very manual process. Your best bet is MusicBrainz Picard to clean up your metadata then use something like Lidarr and Lidarr Extended to maintain and continue to add to your library.

if youre using Emby/Jellyfin you would just need emby to access the folder with your music. users would be authenticated through emby.

i think you should groom your media before you drop it into a media broadcasting solution like emby. i use MediaElch for video, you could use picard for music management. im fairly certain picard has dup detection and rename abilities.

so you get all your music tagged, renamed and encoded the way ya want. then get them organized into files/folders.. then drop that into your emby library.

lidarr is for obtaining media files and creating a process that automatically injects it into your library. you would want emby running correctly first.

For duplicates dupeGuru's Music Mode should suffice (don't be overly aggressive when batch deleting files!)

Then tag and sort them with MusicBrainz Picard (again, take it slow. Picard is great and all but not every automated match is correct and I always check mine if they're correct)

After doing that start taking notes while listening to your Music in case you detect something is wrong (missed duplicate, wrong/partial metadata, etc) which allows you to fix these errors later on

I'd also recommend you do backups along the way because dupeGurus and Picards changes can't be undone and as a beginner you're likely to do mistakes till your accustomed to the process

That's what I did and will continue to do with my 1500 songs (for now)

I also prefer to sync my music from my PC to my phone via rsync (any sync application should suffice). But that's just me, because imo offline playback is the way to go

It will depend on "how duplicate" they are.

I'd use a file renamer that uses id3 tags, which will help find duplicates. It'll ask you to rename/skip/delete dupes.

There are probably better methods tho 🤷‍♂️