Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/8
K:Dmix
['A3 GED F3 GED', 'AGE GAB c2 A BGE EDD dAA']  
X:1
L:1/8
M:6/8
K:Dmix
|: A3 GED | F3 GED | A3 GEA | DED DFG | A3 GED | F3 GED | BcA GEA |1 DED DEG :|2 DED D2 A |: 
 AcA d2 A | d2 A AGE | GAB c2 A | BGE EDD | dAA def | dcA AGE | BcA GEA |1 DED D2 A :|2 DED DEG ||  