Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:6/8
K:G
['gGG BAG ded dBG cec BdB', 'dBG cec BdB AGA']  
X:1
L:1/8
M:6/8
K:G
 (3d/e/f/ | gGG BAG | ded dBG | cec BdB | ABc def | gGG BAG | ded dBG | cec BdB | AGA G2 :: d | 
 dgg gfg | gaf ged | eaa aga | bgg g2 b |1 c'ba gfe | ded dBG | cec BdB | AGA G2 :|2 c'ba gfe | 
 dge dBG | cec BdB | AGA G2 |]  