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:9/8
K:Amix
['cAA a2']  
X:1
L:1/8
M:9/8
K:Amix
|:"A" c2 A AEA AEA |"A" c2 A AEA"G" BGB |"A" c2 A AEA AEA |"G" BGB Bge dBG :|"A" cAA a2 e cAA | 
"A" cAA a2 f"G" gBB |"A" cAA a2 e cAc |"G" BGB Bge dBG || |"A" cAA a2 e cAA |"A" cAA"G" g3 gBB | 
"A" cAA a2 e cAA |"G" BGB Bge dBG |]  