Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:A
['E ABc', 'e2 c']  
X:1
L:1/8
M:6/8
K:A
|: E | ABc E2 c | d2 c B2 E | ABc EFE | F3 A2 E | ABc E2 c | d2 c B2 E | ABc E2 E | F3 A2 :: E | 
 ABc e2 c | f2 c e2 c | ABc e2 d | c3 e3 | f2 d Bcd | e2 c A2 E | ABc EFE | F3 A2 :|  