Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:4/4
K:A
['', 'a2 ae', 'cee=g fddf', 'a2 a2', 'c2 ec']  
X:1
L:1/8
M:4/4
K:A
 e |: ceef a2 ae | f2 fe a2 ae | ceef a2 ae | faec B2 A2 :: cee=g fddf | ecce fBBf | cee=g fddf | 
 ecac B2 A2 :: a2 a2 ef a2 | efae faef | a2 a2 efae faec B2 A2 :: c2 ec defd | c2 ec BcdB | 
 c2 ec defg | afec B2 A2 :|  