Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:1/4=104
M:2/4
K:D
['f>e dd', 'd/c/d aa b/g/d/B/ Gb a/f/d/A/ Fa g/e/B/G/']  
X:1
L:1/8
Q:1/4=104
M:2/4
K:D
 a | f>e dd | ceeg | f>e dd | dd f/g/a | aa/a/ bb | gg a2 | ff/f/ gg | ee fg/a/ | dd cc | BBAG | 
 Faag | f/d/g/e/ d/c/d :: aa b/g/d/B/ | Gb a/f/d/A/ | Fa g/e/B/G/ | Eg f/g/a | dd cc | BB AG | 
 Faag | f/d/g/e/ d/c/d :|  