After listening to the soundtrack, I go the urge to try out some songs a quick google searched revealed that supergiantgames has an online store which sells sheet music for four songs for both guitar and piano. All for the neat price of nothing! Songs covered are: Build that Wall (Zia's theme), Mother I'm Here (Zolf's Theme), Setting Sail, Coming Home (End Theme) and The Pantheon (Ain't Gonna Catch You). Apparently this is due to some fan requests which is pretty cool, usually this kinda stuff is transcribed by fans. Check it out musically inclined duders.

It's really cool that you informed me of this and all but man would a link be nice

Linky

Awesome, time to learn guitar and piano...