So what's the story behind the Harsh Realms demo and the acoustic Amputations? Where did they come from?

Harsh Realms demo is an earlier version of the song that Tom performed on the tourbus and filmed himself playing. He uploaded it to AM!'s Kyte channel a few years back. Probably 2008. Has a couple of lyric differences to the Heart Burns version.

Acoustic Amputations sounds like it was on a radio performance or something. Almost certainly live. I think I got it from here.

Hope that helps

It sure does, thanks! I'm just one of those people that likes to be specific when organizing my music collection.

Thanks man I'm taking it now. I wish I had friends like you guys IRL hahah.