How to fix missing ID3 tags for songs ripped in iTunes?

[rfan]

Hi new user here - apologies if this has been answered elsewhere, I haven't found it in the forums.

Is it possible to add missing metadata automatically?

A few years ago I ripped all my music to iTunes Lossless (ALAC) format. Unfortunately I got rid of most of the CDs. Now I realize what a mistake this was and I'm trying to fix the mess. I would like to use an MPD player but it requires ID3 tags that are missing from the ALAC files.

In PerfectTunes I can edit sort tags manually but this would take years. I also tried using Audio Converter to convert some ALAC files to FLAC, but this didn't add the missing metadata, specifically id3-tags albumartist, artistsort, & albumartistsort are absent and the player I'm trying to use requires these tags.

Basically I'd like to end up with a library of lossless music files (ideally FLAC) that have standardized metadata that's widely compatible, not limited to iTunes / Apple Music.

Thanks for any tips / suggestions on how to approach this.

[Spoon]

Re: How to fix missing ID3 tags for songs ripped in iTunes?

Sorry we do not have anything which can do this.

[rfan]

Re: How to fix missing ID3 tags for songs ripped in iTunes?

OK, thank you. A follow-up question:

Using PerfectTunes I added Artist Sort, Album Artist Sort, and Album Sort tags to several albums. But when I view the files' metadata, sort tags are null. For example:

songsForArtistAndOrAlbum(artist: Ahmad Jamal, album: The Essence Part 1 file='Ahmad Jamal/The Essence, Part 1/01 Ahmad Jamal - Flight.flac' title='Flight', artist='Ahmad Jamal', albumartist='', album='The Essence Part 1', year='1995', sortartist='', sortalbum='', sortalbumartist='', performer='', composer='Ahmad Jamal'

Are these sort tags not supported on flac files?

[garym]

Re: How to fix missing ID3 tags for songs ripped in iTunes?

Those sort tags are supported in flac files.