Misc Unsigned Bands - Arthur Benjamin - Mathematical Pi Chords & Tabs

Mathematical Pi - Arthur Benjamin
Lyrics transcribed from his Mathemagical show at the World Science Festival 2009:
http://vimeo.com/6645221
Chords taken from Don McLean's "American Pie" (ver 2): 
http://www.ultimate-guitar.com/tabs/d/don_mclean/american_pie_ver2_crd.htm

  G    D    Em7
A long long time ago
Am            C
I can still remember
       Em                         D
how my math class used to make me snore
       G     D      Em7
'cause every number we would meet
      Am           C
would terminate or just repeat
    Em               C                D 
but maybe there were numbers that did more

    Em              Am
but then my teacher said "I dare ya'"
   Em              Am
to try to find the circle's area
C          G     Am
despite my every action
C                 D
I couldn't find a fraction
[ Tab from: https://www.guitartabs.cc/tabs/m/misc_unsigned_bands/arthur_benjamin_mathematical_pi_crd.html ]
  G          D        Em
I can't remember if I cried
    Am7             D
the more I tried or circumscribed
    G         D          Em
but something touched me deep inside
    C     D7         G   C   G
the day I learned of pi

   G   C       G       D
oh pi, pi mathematical pi
       G          C          G           D
twice eleven over seven is a mighty fine try
  G        C                G       D
a good old fraction you may hope to supply
        Em                      A7
but the decimal expansion won't die
    Em                      D7
the decimal expansion won't die

G   C       G       D
pi, pi mathematical pi
  G   C   G  D
3.141592653589
  G        C                G       D
a good old fraction you may hope to define
        C         D7            G   C   G
but the decimal expansion won't die