Come Together chords by Aerosmith

Aerosmith
"Come Together"

this song was originally done by the Beatles, but I think that the Aerosmith
version was in a different key, and here it is

written down by greg sokol, but my guitar teacher, steve roane, gave me this

Riff:
e----------------------------------------------------------
B---------------------------10-----------------------------
G---------------------------10-----------------------------
D---------------------------10-----12----------------------
A---------------10/12--------------------------------------
E---10--10-------------------------------------------------

Chords:
Dm7 A7 Ab7 G7  Bm7 Bm7/A  G
5  5  4  3  2  2    3
6  5  4  3  3  3    3
5  6  5  4  2  2    4
7  5  4  3  4  4    5
5  7  6  5  2  2    5
X  5  4  3  X  5    3

Verse:

A7  A7 Ab7 G7(Rest)_________________
  I   I       I      I

Chorus
 Bm7  Bm/A G     A7 Dm7
     I       I (riff)    I