Arrange a song combining the mentioned alphabetical representation of a musical pattern and the given melodic theme.
X:1
L:1/16
M:2/4
K:G
['G2Bc d2ef', 'G4 bagf edcB c2a2 a4 agfe dcBA', 'd4 d4 defg agfe']  
X:1
L:1/16
M:2/4
K:G
 G2Bc d2ef | g2g2g2d2 | e2c2B2A2 | BAGF G2D2 | G2Bc d2ef | g2g2g2b2 | a2g2 fgaf | g4 G4 :: 
 bagf edcB | c2a2 a4 | agfe dcBA | B2g2 g4 | gfed cBAG | edcB AGFE | D2c2B2A2 | G4 G4 :: d4 d4 | 
 defg agfe | d4 d4 | defg agfe | d2cB c2BA | B2AG F2D2 | d2ef g2c2 | B2A2 G4 :|  