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:3/4
K:Amin
['ED _D2 A,B, _D2 =D2 B,2']  
X:1
L:1/8
M:3/4
K:Amin
 E,2 | (A,2 _D2) E2 | ED _D2 A,B, | _D2 =D2 B,2 | A,4 E,E, | (A,2 _D2) E2 | ED _D2 A,B, | 
 _D2 =D2 B,2 | A,4 _A,=A, | B,2 E,2 B,2 | A,_A, ^F,E, E,E, | A,2 (A,B,) _DA, | D4 _DB, | 
 A,2 (_D2 E2) | ED _D2 A,B, | _D2 =D2 B,2 | A,4 ||  