Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/4
Q:1/2=100
M:4/4
K:Gmin
['A B c', 'd2 =e f g a g/a/ f', 'f d']  
X:1
L:1/4
Q:1/2=100
M:4/4
K:Gmin
 B/A/ | G A B c | B G2 A | B c d/c/d/e/ | f d2 :: =e | f g a g/a/ | f d2 A | B A/G/ A G/F/ | G3 :: 
 d/e/ | f c e d | f B2 e | f d g/f/g/a/ | f b2 a | f d e/d/c/B/ | A f2 A | B A/G/ A G/F/ | D G2 :|  