Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/8
K:G
['GBd efg dBG', 'gdd B2']  
X:1
L:1/8
M:6/8
K:G
|: GBd efg | dBG AGE | GBd efg | dBG A2 D | GBd efg | dBG AGE | B2 G AGE |1 DED D2 D :|2 
 DED D2 A |: B{c}Bd gdd | edd gdd | B2 d gdB | A{B}A{G}A AGE | B{c}Bd gdd | edd gdd | B2 G AGE |1 
 DED D2 A :|2 DED D2 D ||  