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
['d2 .d2']  
X:1
L:1/8
M:4/4
K:D
 (3ABc | d2 .d2 d2 .d2 | c>de>f d2 .A2 | f2 .f2 f2 .f2 | e>fg>f e2 .e2 ||  