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
['F/E/D Adcd ABdB', 'fAdA Bgfg efed ce f/f/e Aceg fddB']  
X:1
L:1/8
M:4/4
K:D
 D2 F/E/D Adcd | ABdB AFEF | D2 FD ADFD | EA, A,/A,/A, EGFE | DE F/E/D Adcd | ABdB A2 de | 
 faeg fdef |1 dBAG FAEF :|2 dBAG FABc |: dA B/B/A fA B/B/A | dA B/B/A fAdA | Bgfg efed | 
 ce f/f/e Aceg | fddB AFFE | DF F/F/F ABdB | B2 AB GAFD |1 EGFE FABc :|2 EGFE FDEF ||  