Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/4
M:4/4
K:D
['F D D', 'd d']  
X:1
L:1/4
M:4/4
K:D
 A/G/ | F D D D/D/ | F D D E/F/ | G E E/D/E/F/ | G E E2 | F [DA]/[DA]/ [DA]3/2 [DA]/ | 
 F [DA] [DA] d | c e B c | [Dd]2 [Dd] :: d/e/ | f d d3/2 e/ | f d d e/f/ | g e e/d/e/f/ | g e e2 | 
 f a/f/ d d | f/g/a/f/ d d | c A B c | [Dd]2 [Dd] :|  