I like Tony's idea.

To address some issues raised, a config.ini parameter could be setup to define the search order (search mp3 for lyric or look for the file first).

Once the lrc file is saved on your pc/mac etc you could just put a tag into the mp3 file its filename.

Then (as I use mp3tofid/rsync), maybe Pim could modify mp3tofid to automatically symlink the .lrc file like he does the mp3 files.

Maybe it could with different options build the lrc file into the mp3 at that time..