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
['BAGF GABd cABc', '(3Bcd ec d2']  
X:1
L:1/8
M:4/4
K:D
 dAAA BAGF | GABd cABc | dded cABc | dfed cABc | dA (3AAA BAGF | GABd cABc | (3ddd ed cABc |1 
 dfec d2 (3Bcd :|2 dfec d2 FG || Adfd Adfd | Adfd dcBc | Acec Acec | Acec dcBc | Adfd Adfd | 
 Adfd dcBA | aA (3AAA dcBA |1 (3Bcd ec d2 FG :|2 (3Bcd ec d2 Bc ||  