Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/4
M:4/4
K:G
['B A A', 'd e/f/g/e/ d g e/f/g/e/', 'B A', 'g e', 'G/A/B/G/ A/B/c/A/ B/c/d/B/', '', 'A B d f', 'a f']  
X:1
L:1/4
M:4/4
K:G
 D | G G A B/d/ | e/f/g/e/ d/B/A/G/ | B A A G/A/ | B A A D | G G/A/ B d | e/f/g/e/ d/B/A/B/ | 
 G E E D/E/ | G E E :| d | e/f/g/e/ d g | e/f/g/e/ d/B/A/G/ | B A A G/A/ | B A A d | e/f/g/e/ d g | 
 e/f/g/e/ d/B/A/B/ | G E E D/E/ | G E E :| D | G A B B | c c B A | B A A G/A/ | B A A D | G A B B | 
 c c B A | G E E D/E/ | G E E :| g | f/e/f/a/ g e | f e/d/ d/c/A/G/ | A g g f/g/ | a g g e | 
 f/e/f/a/ g e | f e/d/ d/c/A/G/ | F D D A/G/ | F D D :| D | G/A/B/G/ A/B/c/A/ | B/c/d/B/ c/B/A/G/ | 
 B A A G/A/ | G A A G | G/A/B/G/ A/B/c/A/ | B/c/d/B/ c/B/A/B/ | G E E D/E/ | G E E :| A |: 
 A B d f | A B d f | e B B A/B/ | e B B2 | A B d f | A B d f | e B c A/c/ | e d d2 :: a f d f | 
 a f f2 | e B B A/B/ | e B B2 | a f d f | a f f2 | e B c A/c/ | e d d2 :|  