Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:G
['FED def']  
X:1
L:1/8
M:4/4
K:G
 A | FED def | dDD D2 E | FED def | eEE E2 A | FED def | Adg f2 e | dcB ABc | dDD D2 |]  