I asked for this some years ago and now found out that a similar feature (CDG files for WMA are renamed with) has been implemented over the years.
Is it possible to get the same for FLAC files? (e.g. that the connected CDG file is renamed when the FLAC filename is altered?)
That would be a great help in preserving old Karaoke CD+Gs.
It's available with Mp3tag v3.04.