Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/16
Q:1/4=120
M:2/4
K:G
['GFGA B2B2', 'g4 d4 dcBc']  
X:1
L:1/16
Q:1/4=120
M:2/4
K:G
 GFGA B2B2 | GFGA B2B2 | dcBc A2A2 | dcBc A2A2 | GFGA B2B2 | GFGA B2B2 | dcBc A2B2 | G4 G4 :: 
 dcBc B2B2 | g4 d4 | dcBc A2A2 | dcBc A2A2 | dcBc B2d2 | g4 d4 | dcBc A2B2 | G4 G4 :|  