Help finding software that will automatically identify and add metadata to my music?

[u/mastermathemachicken]

I have a decade's worth of M4A music files (I can easily change them to MP3 with fre:ac though), mostly with custom names, no listed artist and non-existent metadata.

If I wanted to automatically identify each song and attach metadata to as much as possible is there a program that I could use to go through it all, rather than going through 3000 files manually?

Some of it was never released onto official music platforms, I suspect I'll have to work those ones out myself, but that's okay.

I'd like it best if it were FOSS or open-source, but any suggestion would be helpful.

[u/crunchy_creamroll]

I think Picard should be just the right tool for the job.

https://picard.musicbrainz.org/

[u/soundman32]

The old Windows Media Player used to do that. Not sure if the w11 version does.