Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/4
M:6/4
K:Amin
['d3/2 e/ d', 'g3/2 f/ e']  
X:1
L:1/4
M:6/4
K:Amin
 A2 A c2 c | d3/2 e/ d a3 | A3 ^c3 | d3/2 e/ d ^c A2 || f2 f g3/2 f/ e | f a2 g2 e | 
 f2 f g3/2 f/ e | f a2 g2 c | f g a g3/2 f/ e | d e d f3/2 g/ a | A3 ^c3 | d3/2 e/ d ^c A2 ||  