This is my first contribution, so please forgive me if I haven't submitted properly.

I am very surprised that no one has suggested the guitarist is tuned down a half step (Eb tuning)
So many guitarists tune down (Van Halen, Extreme, Vertical Horizon, etc.) when playing acoustic.

Tuning:  -  -  -  -  - 

Now it's only a matter of playing a "country" C chord, adding the third fret on the high Eb string.
I don't hear a 7th in the Gm chord, but it's certainly an alternate.
I like the Ebsus2 up on the 6th - works nicely with the keyboards and solo guitar.
The "pièce de résistance" chord - I don't mind the suggested Gm7b5/C#.
One might contest that if the root were C#, and the C is truly heard, the chord might be a C#maj7/6.
But an easier chord could be a simple C#6 bar chord.
Dm chord - depends on the "colour" you wish to add and where.
I've listed three versions that I think could work - take your pick.
I think the third position Dm works well for the piece between the Chorus and 2nd Verse.


         
eb|-3---/-3---
Bb|-1---/-3---
Gb|-0---/-3---
Db|-2---/-5---
Ab|-3---/-5---
Eb|-x---/-3---
____________

)     
-/-6----6----/
-/-6----6----/
-/-0----0----/
-/-5----5----/
-/-6----5----/
-/-x----x----/

      
-3-----/-6----
-1-----/-6----
-2-----/-6----
-3-----/-6----
-0-----/-4----
-1-----/-x----

    
/-1------0----
/-1------1----
/-2------2----
/-0------0----
/-x------x----
/-x------x----

       
--0----/-1----
--6----/-1----
--7----/-2----
--6----/-3----
--x----/-3----
--x----/-1----

  
/-1----
/-1----
/-0----
/-0----
/-2----
/-3----

[Intro]
 -  -  -  - 
 -  -  -  - 

[Verse]

Came in from a

 rainy thursda

y
        
on the avenue
           
thought I hear

              
d you talking 

             
softly

I turned on th

e lights, the 

tv
           
and the radio


           
still I can't 

              
escape the gho

             
st of you

[Bridge]

What is happen

ed to it all?

Crazy, some sa

y
             
Where is the l

            
ife that I rec

ognize?  (Gone

 away)

[Chorus]

But I won't cr

y for yesterda

y

there's an ord

inary world
  
somehow I have

/  
 to find

And as I try t

o make my way

to the ordinar

y world
  
I will learn t

/  
o survive

(Here, if you use the third position of the Dm I've suggested, you can add the notes on the high Eb string
on the 7th fret, then 5th, then drop to an open Eb)