Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
Q:1/4=105
M:2/4
K:D
['a>f a/f/a/f/ dd dA BB/d/ cc/e/', 'a>b a>b']  
X:1
L:1/8
Q:1/4=105
M:2/4
K:D
 a>f a/f/a/f/ | dd dA | BB/d/ cc/e/ | d/c/d/e/ dA | a>f a/f/a/f/ | dd dA | BB/d/ cc/e/ | d2 D2 :: 
 a>b a>d' | ba gf | a>b a>b | b/a/g/f/ fe | a>b a>b | ab c'd' | b/a/g/f/ a/g/f/e/ | d2 d2 :|  