In Quintessence (Difford/Tilbrook)
Riff
C | F G | C | F G

   C                   F      G
He smokes himself into double vision
Am                    Dm   G
Leaves his mind on an indecision,
C                    F    G
Thinks he's invented imagination
D                Dm    E
Says that god is some relation.
Am                      F
He leaves his cigarette burning on the desk
C                         F
His clothes and magazines make up such a mess,
Dm                G          E
Sitting up in bed transistor on his chest
   Fm           C
in quintessence
   Fm           C
in quintessence

C                      F          G
He and his friends sit around all evening
Am                     Dm       G
Leaving their laughter upon the ceiling,
C                     F         G
Seems so funny yet it leaves me yawning
D                    Dm         E
Then I find it's the following morning.
Am                     F
He says his girlfriend lives too far away
C                          F
Always at a friend's house or on holiday,
Dm                             G    E
His bible of romance hides its self away
   Fm           C
in quintessence
  Fm            C
in quintessence
  Fm            C
in quintessence
  Fm            C E
in quintessence

Middle (*see note at bottom)
E               E6
A 15 year old's browse through life,
E7               E6                    E
is fine with his quintessence safe and sound in mind,
E            E6            G
Life's an adolescence from time to time
G add C#
With us all
E               G Bd Db
in quintessence

Riff
C | F G | C | F G

Solo
D | G A | Bm | Em A | D | G A | Bm | Em A

C                      F        G
In the corner with his book and tissue
Am                  Dm      G
All he can do is pretend to miss you,
C                  F           G
Closed his eyes as he sees her body
D                     Dm          E
Pulls funny faces and that's his hobby
Am                F
On the other hand love ain't a happy word
C                 F
On the other hand love ain't a piece of skirt,
Dm                                  G        E
Makes for something special in your football shirt
   Fm           C
in quintessence
   Fm           C
in quintessence
   Fm           C
in quintessence
   Fm           C
in quintessence

Riff 6x
C | F G | C | F G

End
E Am | C
Note About the Middle: It sounds to me as if this section is built around an E chord with the top string muted, so it climbs and descends on the B string (B-C#-D-C#-G#). After "...sound in mind" the B string sounds muted so the G# is the highest note in the chord. The same is true for the next part with the G chord (B-C#-D-C#). 
Transcribed by Sneg@aol.com
Suggestions and corrections are always welcome