OK, so this is one of the sexiest blues songs you'll ever hear.  
Think of Since I Been Lovin You, or Babe I'm Gonna Leave You by Led Zeppelin; slow 
6/8 blues with a walkin bass line.  
I would recommend listening to the song first if you're not familiar with it 
already, the lyrics fit very loosely over the chords.  
While its probably best suited for guitar, it sounds pretty good on a piano too. Enjoy :D 

Bass riff between Gm7 to Cm:G Bb  D  Bb C
                            C Bb  G  F G
4 bar Intro: Cm Gm7 x2

[Verse 1]
        Cm                  Gm7
        If I ever leave you, you can say I told you so
        If I ever hurt you baby, you know I hurt myself as well

[Chorus]
     Gb Fm7                         G7
        Is that any way for a man to carry on?
       Ab                                G7
        You'd think he'd want his little loved one gone
          Cm          Cm/Bb                    Adim Ab         G7
        I Love you baby, more than you'll ever know, more than you'll ever 
           Cm Gm7 x2
        know

[Verse 2]
      Cm                                  Gm7                                
       When I wasn't makin too much money, you know where my paycheck went
       You know I brought it home to baby, and I never spent one red cent

[Chorus]
        Fm7  G7  Ab  G7  Cm  Cm/Bb  Adim  Ab  G7
        Cm  Gm7  Cm  C

[Bridge]
       Eb                 Ab    
         I'm not tryin to be
         any kind of man
         I'm tryin to be somebody
         you can love trust and understand
       C                   Fmaj7/C
         I know that I can be Yeah!
         a part of you that no one else could see
       Fm                               F#dim       G      G     G
         I just gotta hear, to hear you say "it's alright" yeah, yeah,

[Verse 3]
       Cm                                  Gm7
       YEAH! I'm only flesh and blood baby, but I can be all that you demand
       I could be president of General Motors, or just a tiny grain of sand

Chorus: Fm7  G7  Ab  G7  Cm  Cm/Bb  Adim  Ab  G7

Solo: Cm  Gm7  Cm  Gm7  Fm7  G7  Ab  G7  Cm  Cm/Bb  Adim  Ab  G7

[Verse 1]
       If I ever leave you, you can say I told you so
       and if I ever hurt you, you know I hurt myself as well

[Chorus]
     Gb Fm7                         G7
        Is that any way for a man to carry on?
       Ab                                G7
        You'd think he'd want his little loved one gone
       Cm          Cm/Bb  Adim
       I love you baby, I love you baby
       Ab G7
              I love you! I love you! I LOVE YOU BABY!

[Outro] Cm Gm7 x2

来源：www.ultimate-guitar.com