The song starts in the key of G, and modulates up a minor third to the key
of Bb for the chorus.

I have transcribed this for three guitars;

1) The open tuning of C7/9 as follows;
E B D G C E

Em             - xx2020            Bb      - xxx321
D9/4      - xxx020            Eb      - xxx876
C            - xx2000            Gm7      - xx3323
Bm            - xx0422            F      - xxx555


2) An altered tuning where the 6th string is tuned up to G;
G A D G B E

Em            - 079xxx            Bb6            - 013xxx
D4            - 057xxx            Eb            - 068xxx
C            - 035xxx            Gm7 (no 3rd)- 053xxx
Bm7 (no 3rd)- 224xxx             F             - 233xxx


3)  Standard tuning.

D9      - xx0230
Bm7      - x24232
Gm7      - 353333

Intro:

Em  D9  C  Bm7
Em  D9  C  Bm7
Em  D9  C  Bm7
Em  D9  C  Bm7

Em              D9
Hold me down to anything
C                 Bm7
Anything that you see
Em              D9    C     Bm7
I should walk away right now
Em                D9
I'll be there, so never mind
C                  Bm7
I'll be the one to fall
Em          D9             C  Bm7
Waiting for you to look up at me

Bb
Oh I love you the most
       Eb
Always giving up the ghost
        Gm7                F
In your own private conversation
         Bb
You're a sweet mystery
         Eb
There is nothing in between
Gm7              F
You and the Mona Lisa

Em  D9  C  Bm7

Em            D9
Nothing in particular
C                    Bm7
And everything in between
Em               D9   C   Bm7
This is what you mean to me
Em           D9
Only you and only me
C                       Bm7
Climbing in the right direction
Em            D9 C    Bm7
On the way to everything

        Bb
We were walking up high
    Eb
And no one thought to try
    Gm7              F
But I was the one to blame
       Bb
It was just a mirage
     Eb
So I hid in the garage
          Gm7              F
Until somebody called your name

Solo

Bb
Oh I love you the most
       Eb
Always giving up the ghost
        Gm7                F
In your own private conversation
         Bb
You're a sweet mystery
         Eb
There is nothing in between
Gm7              F
You and the Mona Lisa

Em  D9  C  Bm7
Em  D9  C  Bm7

Em          D9
Nothing in particular
     C                Bm7
Just you and the Mona Lisa....