(Suggestion) Use the Charter tag as author, in case it is missing from song.ini.

[NicoBren]

Ignoring color tags. For some reasons, some rips have color tags in the charter name (why, my Lord?) like this one:

.

Thanks for your attention.

[mtolly]

I don't think I understand - are frets/charter not being read at all, or not applied to an output format (which one?), or are the color tags messing it up?

As far as I know these should be working already, and get the special tags stripped out on import. I tested with the song in your screenshot and it seems to import+export the author fine, so let me know if there's something not working.

[NicoBren]

When added to PS2 ARK as Bonus Song. It always appears as Author: unknown.