About the Language Code for Comment and Unsynced Lyrics

[ohrenkino]

@tagger

I'm feeling like this is a bit inconsistent (as both frames require the language code)

True, yet it is not the same.
Comment gets the code added to a separate section in the field definition - that is why you can set it on the options.
This thread and post shows a hex dump of a comment fields with the added language token

MP3TAG messing up with MP3 comments tag when editing

There are 2 comment fields - even MP3diags shows 2 fields COMM, each with the size 6 for the file exported by Audacity. Yet, for the files exported by Audacity, the first COMM field has no language token, whereas the second field has the languge token XXX. Editing the file with MP3tag changes both to ENG. [grafik] So, my Audacity causes problems. If your windows does not display the comments at all, check if ENG is the best setting or whether XXX would be better.

The unsynced lyrics have the language token as part of the field data (only MP3) which is visible for programs that show the raw data (like MP3tag) - as it would be the task of the user to add the appropriate language token manually.