Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:2/4
K:D
['dc BA', 'DF AF EF GB AB']  
X:1
L:1/8
M:2/4
K:D
|: Af fe | dc BA | Be Bc | dc BA | Af fe | dc BA | Be Bc | d2 d2 :: DF AF | EF GB | AB cd | ed ef | 
 DF AF | EF GB | AB cA | d2 d2 :|  