Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:4/4
K:D
['fedf edBc dBBA BAFD DDFA =cBAG', 'AG FAAA DAAA BDcD dBAG FDDD F2']  
X:1
L:1/8
M:4/4
K:D
 fedf edBc | dBBA BAFD | DDFA =cBAG | FAde f2 de | fedf edBc | dBBA BAFD | DDFA =cBAG |1 
 FDEC DFde :|2 FDEC D2 AG || FDDD F2 GF | E=CEG B2 AG | FAAA DAAA | BDcD dBAG | FDDD F2 GF | 
 E=CEG B2 AG | FAdf edce |1 dfec dBAG :|2 dfec d2 de ||  