Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:4/4
K:G
['Bc dBGd edBA GFGA BGDG', 'G2 Bc dgbg dgbg dggb d/f/d bg']  
X:1
L:1/8
M:4/4
K:G
 Bc | dBGd edBA | GFGA BGDG | BdGB BddB | cAAG A2 Bc | dBGd edBA | GFGA BGDG | Bd G/B/d BGAc | 
 B/A/G A/G/F G2 :: Bc | dgbg dgbg | dggb d/f/d bg | agab c'bc'd' | a/g/f g/f/e d2 dc | BABc dBGB | 
 efga gfed | cBcd ceBA | FAGF G2 :|  