Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/8
K:G
['DGB cBA dGc BAG', 'g2 g']  
X:1
L:1/8
M:6/8
K:G
|: DGB cBA | dGc BAG | e2 e dBG | A/B/cB AGE | DGB cBA | dGc BAG | ee/e/e dge |1 dBA G2 E :|2 
 dBA GB/c/d |: g2 g edB | ABc def | g2 g edB | A/B/cB AGE | g2 g edB | ABc d2 d | A/B/cB AGA | 
 BGF GB/c/d | g2 g edB | ABc def | g2 g age | dBG AGE | DGB cBA | dGc BAG | ee/e/e dge | 
 dBA G2 E |]  