Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/4
K:D
['F2 AABB']  
X:1
L:1/8
M:2/4
K:D
 AABB | A2 F2 | AABB | A2 F2 | A2 F2 | AA F2 | AABB | AA F2 | AABB | AA F2 | AABB | AA F2 | AABB | 
 AAFF/F/ | AABB | AAFF/F/ | AABB | A2 F z | AAFD | BBAA | GGFF | EADD |]  