This can be downloaded on 
http://www.gametabs.com

As an added note: T.H means right hand harmonics. 
You sometimes will do rh harmonics for open 12th/7th 
frets (while the string is 0 ) because your right hand will 
be busy at the top of the neck. It is still arranged in a 
simple fashion!
In addition, the bass notes have to ring: this is in the 
form of a valse/waltz.
The slow-downs and tempo changes are not included, 
please refer to the ost's version when you've learned it 
by heart to finalize your performance.

This song comes from the April 2012 (I think) rpg 
maker 2003 horror game Ib.