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