Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/4
M:4/4
K:G
['B B']  
X:1
L:1/4
M:4/4
K:G
 D | G3/2 D/ B, D | G B B d | A3/2 G/ F G | A D/D/ D G/A/ | B B B B | B d d c/B/ | A c c c | 
 c e d d/c/ | B B A A | B2 z |]  