Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
['GABc defg', '[G,G]2 dBdB dBdB cAcA cAcA dBdB dBdc', 'gdcB gdcB']  
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
 GABc defg | dBAG AFED | GABc defg | dBcA G2 [G,G]2 :: dBdB dBdB | cAcA cAcA | dBdB dBdc | 
 BdcB TB2 A2 :: gdcB gdcB | ecBA ecBA | gdcB gdcB | AcDF G2 [G,G]2 :|  