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:D
['B>dd A>dd', 'A>ff fef a>ff fed', 'G>gg gfg a>ge', 'G>BB B>dd d>ee']  
X:1
L:1/8
M:6/8
K:D
|: B | A>dd dcd | B>dd A>dd | B>dd A>dd | B>ee ede | A>dd dcd | B>dd A>dd | B>dd c>ee | f>dd d2 :: 
 B | A>ff fef | a>ff fed | c>ee ede | f>ee edB | A>ff fef | a>ff fed | B>dd c>ee | f>dd d2 :: 
[K:G] B/A/ | G>gg gfg | a>ge gdB | G>gg gfg | a>ge g2 G | B>gg gfg | a>ee g>dd | B>ee e>gg | 
 f>dd e2 :: d | G>BB B>dd | d>ee edB | G>BB B>dd | d>ee e>gg | G>BB B>dd | d>ee edB | B>ee e>gg | 
 f>dd e2 :|  