This is standard tuning that matches the song. I think he tuned down halfstep and play 
halfstep chords up though

C#
The sun has blessed
The rays are gone                                  Bm
And all the kids have left their tears and gone home

Bm
Sweet 17, sour 29
And I can't explain myself
                    G#m
What I'd hoped to find
F#                Fm
   You're all so kind
                C#
Without her here

C#      D#m         Bm
Maybe I need you around
C#      D#m         Bm
Maybe I need you around
C#      D#m
Maybe I need you
C#      D#m              Bm
Maybe I need you all right now
C#      D#m         Bm
Maybe I need you around

Bm
I had no luck
I had no shame                     G#m
I had no cause, just 17 days of rain
Bm
And you in my eyes

C#
Just one more song to slay this earth
And I can't explain myself
                 Bm
Just what it's worth
It's all I had, but not all I need
                                         F#
And I can't escape the fact that I still bleed
               Fm
It's all to steep
              C#
Without her here

C#      D#m         Bm
Baby I need you around
C#      D#m         Bm
Baby I need you around
C#      D#m         Bm
Baby I need you around

Bm
I had no voice
I had no drive
I had no choice
I had no crime
I had myself
I had my band
I had my love
                G#m         Dm       Bm
Had no hand in watching it all fall apart

C#      D#m         Bm
Maybe I need you around
C#      D#m         Bm
Maybe I need you around
C#      D#m
Maybe I need you
C#      D#m              Bm
Maybe I need you all right now
C#      D#m         Bm
Maybe I need you around