Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:4/4
K:A
['A2 GA FAEA FAEA cefa', 'agab agfe dcde fedc']  
X:1
L:1/8
M:4/4
K:A
 E2 | A2 GA FAEA | FAEA cefa | eAfA gAaA | BcBA AGFE | A2 GA FAEA | FAEA cefa | ecfa ecaf | 
 ecdB A2 :| A2 | agab agfe | dcde fedc | BEcE dEcE | BcBA AGFE | agab agfe | dcde fedc | 
 Bcde fgaf | eagb a2 a2 | agab agfe | dcde fedc | BEcE dEcE | BcBA AGFE | A2 GA FAEA | FAEA cefa | 
 ecfa ecaf | ecdB A2 ||  