Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/16
M:4/4
K:D
['dAdf dAdf', 'A2A2A2 A2 dAde fedc B2G2 G2cd edef']  
X:1
L:1/16
M:4/4
K:D
 A2 | dAdf dAdf | fedc d2FG | A2AB A2F2 | FEFE D2A2 | dAdf | dAdf | e6 d2 | dcBA BcdB | A2A2A2 :: 
 A2 | dAde fedc | B2G2 G2cd | edef gfed | c2A2 A2c2 | dAdf dAdf | eAeg eAeg | fedf edce | d2d2d2 :|  