Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['AF F2', 'BABc dfef']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 G | AF F2 dF F2 | BAFB AF F2 | AF F2 dfdB | AFDF E2 FG | AF F2 dF F2 | BAFB AF F2 | BABc dfef | 
 dBAF E3 |] A | BABc dfef | d2 ef dBBA | BABc dfef | dBAF E3 A | BABc dfef | d2 ef df f2 | 
 bfaf egfe | dBAF E3 |]  