Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
['cBAc e3 a efed c2 B2 agfe', 'E3 B3 c BGEG e3 f ecAc']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
 cBAc e3 a | efed c2 B2 | agfe ^dcBd | eGFB G E3 :| B3 c BGEG | e3 f ecAc | fedc defg | 
 aedc c2 B2 | ecAc fdBd | bgeg a2 A2 | agfe dcBA | GBEe c A3 |]  