Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
['G2 BG dG BG AB', 'ef gf ga', 'ga bg']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: D2 | G2 BG dG BG | AB cd (3(efg) dB | G2 BG dG BG | AB AG FD EF | G2 BG dG BG | AB cd e2 g2 | 
 (3(bag) (3(agf) ge dB |1 GB AF G2 D2 :| GB AF G2 ef |: gf ga ge de | ga bg ag eg | ag ab ag ef | 
 ga bg e2 de | gf ga ge de | ga bg ag ef | gf ga ge dB |1 GB AF G2 ef :|2 GB AF G2 ||  