D C

[Verse 1]
D               C
An unseen ruler defines with geometry
D             C
An unrulable expanse of geography
B 
An aerial photographer over-exposed
E 
To the cartologist's 2D images knows
D                   C
The areas where the water flowed
D             C
So petrified, the landscape grows
D              C
Straining eyes try to understand
D           C
The works, incessantly in hand
E 
The carving and paring of the land
A
The quarter square, the graph divides
D                          C
Beneath the rule a country hides
A G
"Chorus!"

[Chorus]
D               C 
Interrupting my train of thought
Bm         G 
Lines of longitude and latitude
D       C      Bm    G 
Define, refine my altitude

[Verse 2]
A 
The curtain's undrawn
A 
Harness fitted, no escape
A 
Common and peaceful, duck, flat, lowland
A 
Landscape, canal, canard, water coloured
A G

[Verse 3]
D               C
Crystal palaces for floral kings
D                   C
A widespread waving span of wings
D           C
Witness the sinking of the sun
D                 C
A deep breath of submission has begun

[Chorus] 
D                C 
Interrupting my train of thought
Bm        G 
Lines of longitude and latitude
D        C     Bm    G 
Define, refine my altitude
D                C 
Interrupting my train of thought
Bm        G 
Lines of longitude and latitude
D        C     Bm    G 
Define, refine my altitude