Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:D
['Addc A3 B', 'd2 fd Adfd']  
X:1
L:1/8
M:4/4
K:D
 Addc A3 B | cBcd e2 dc | Addc A3 B | cAGE ED D2 :| d2 fd Adfd | cdef g2 fe | d2 fd Adfd | 
 faag eddc | d2 fd Adfd | cdef g2 df | afge fdcd | eaag eddB ||  