Adding UNSYNCEDLYRICS with MP3Tag

Solution

1. Launch MP3Tag
2. Right click on MP3 > Extended Tag...
   
3. Add field... > UNSYNCEDLYRICS
   
4. Click OK > OK > OK
   

Alternatively, you can use MusicBrainz Picard to auto tag MP3 files

Lyrics Source

魔镜歌词网

Regex for extracting UNSYNCEDLYRICS lyrics from mojim.com (paste into Google Developer Console)

copy($('#fsZx1').innerText.replace(/(.*魔镜歌词网\s?\n)|(\n(感谢|友站连结).*)|(\[(\d+(:|.)?){1,3}.*\n)|(\n{3,})/g ,'').trim());

lyrcs will be copied to the clipboard

Reference

用Mp3tag為您的MP3音樂檔修改標籤或加入註釋、封面及歌詞，安裝與教學篇。