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
['B,D GD CE AE DF']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: f | g2 dB GB dB | a2 ec Ac ea | g2 dB GB dB | ce dc BG Gf | g2 dB GB dB | a2 ec Ac ea | 
 g2 eg dg Bg | cA d/c/B/A/ BG GD | B,D GD CE AE | DF AB cA BG | B,D GD CE AE | DF Ac BG GD | 
 B,D GD CE AE | DF AB ce dc | Bd gB ce ag | fd af gG G :|  