Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/4
M:4/4
K:A
['A A']  
X:1
L:1/4
M:4/4
K:A
 A | A D E F | G2 A2 | A G E E | E2 F G | A2 A B | c2 B B | A3 G | A A B c | d2 c B | A G F D | 
 (D C) D E | (F G) A A | G2 E D | D3 |]  