I'm in need of a little help with this cover as I'm having some issues. I'm satisfied with Rin's vocals, but the problem lies within Len's vocals. For some reason he sounds like he's choking or something during various parts of the song. I've never had this issue with his vocals before, so I'm not sure how to fix it. I've gone back and tried to fix his ocals about five different times. If anyone has any recommendations on how to fix this, your feedback is greatly appreciated!