Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:6/8
K:Emin
['ABg eBA GAB', 'e2 B']  
X:1
L:1/8
M:6/8
K:Emin
|: E2 G ABg | eBA GAB | DFA dBf- | feB AGE | EGB ABg | eBA GAB |1 AcB GBB | FAB DEF :|2 BcA F3 | 
 F2 F dcB |: e2 B AGE | FGA Bde | e2 B gfe | BAG GAB |1 g2 B BAB | f2 A AGA | DFA def | gfe BAG :|2 
 e2 B AGE | F3 z3 ||  