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
['A/B/c de f2']  
X:1
L:1/8
M:4/4
K:D
|: A/B/c de f2 fa | g2 gf gfec | A/B/c de f2 ff | ageg fd d2 :|  