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:A
['c (ABcd) ed cAed cAeg ae c2', 'eaga eaca']  
X:1
L:1/8
M:4/4
K:A
 c | (ABcd) ed cAed | cAeg ae c2 | (A/B/c/d/) ed ceA=c | B=GGf gd B2 :: eaga eaca | eacf eA c2 | 
 eaga eaca | B=gdg BG B2 :|  