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:A
['c2 (cB) cecA', 'ceAe ceAe']  
X:1
L:1/8
M:4/4
K:A
 (ed) | c2 (cB) cecA | d2 (dc) dfdB | Aceg agaf | e2 (ef) edcB | c2 (cB) cecA | dcde fgaf | 
 ecAc dBGB | A2 A2 A2 :: (cB) | Aceg agaf | e2 (ef) edcB | Aceg agaf | e2 ef edcB | ceAe ceAe | 
 dfBf dfBf | ceAe ceAe | GBEB GBEB | ceAe ceAe | dcde fgaf | ecAc dBGB A2 A2 A2 :|  