Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
['Dd/c/ dd fd f2 af a/g/f/e/', 'd2 gg ff gg f2 gdfd g2', 'AB cc ce e2 ce f/e/d/c/', 'B>c dd']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
 Dd/c/ dd | fd f2 | af a/g/f/e/ | d/c/d/e/ dd | Dd/c/ dd | fd f2 | af a/g/f/e/ | d2 d2 :: gg ff | 
 gg f2 | gdfd | g2 df | Dd/c/ dd | fd f2 | af a/g/f/e/ | e2 d z :: AB cc | ce e2 | ce f/e/d/c/ | 
 B/A/B/c/ BE | AB cc | ce e2 | ce f/e/d/c/ | c2 B2 :: B>c dd | c>eac | B>c dd | d>f e/d/c/B/ | 
 A>B cc | ceac | d>f e/d/c/B/ | B2 A2 :|  