Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/16
Q:1/4=100
M:2/4
K:A
['eaec eaec', 'A2 Me2 a2ag aAce a2ga faea dbdb']  
X:1
L:1/16
Q:1/4=100
M:2/4
K:A
 ME2 | ABcd eaec | eaec eaec | dfdB cecA | dcBA GBGE | ABcd eaec | eaec eaec | dfdB cecA | 
 BAGB A2 :: Me2 | a2ag aAce | a2ga faea | dbdb caca | dcBA GBGE | ABcd ecea | 
 fd (3(Bcd) ec (3(ABc) | dfdB cecA | BAGB A2 :|  