Nine Inch Nails - The Day The World Went Away Chords & Tabs

So it's been about.. 4 years and I've been waiting for this tab to get transcribed by 
better than myself, but to no avail.. so here is my version. Please send comments or 
as you deem fit.


Intro Chords on Piano

---------1-----|
5--6--6-----3--|
------5--2--3--|
5--------------|
3--5--------1--|
---6--4--1-----|

Acoustic Riff overlay

------8-|
-----8--|
-5-6----|
--------|
--------|
--------|

Progression chords at end of vocal portion

------------|
5-6-7-8-----|
------------|
5-6-7-8-----|
3-4-5-6-----|
------------|
[ Tab from: https://www.guitartabs.cc/tabs/n/nine_inch_nails/the_day_the_world_went_away_tab_ver_4.html ]
Still working slowly on the acoustic outro.
It really is a melody between the guitar
and piano. The guitar portion plays on the
following theme-

---------------------------------------------------------------------|
---------------------------------------------------------------------|
---5----5----5--s--7------7-------7s--8s--7-----7-------7s---8----10-|
---------------------------------------------------------------------|
-3---3----3-----------5------5---------------5------5----------------|
---------------------------------------------------------------------|