Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/4
M:3/4
K:Dmin
['G/ F/']  
X:1
L:1/4
M:3/4
K:Dmin
 D A/ G/ F/ E/ | E D z | D A G/ F/ | F E z | D A G/ F/ | F E z | F D E/ F/ | G/ F/ F E | z z D | 
 A F E | D2 z :|  