Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Amin
['A2 A2']  
X:1
L:1/8
M:4/4
K:Amin
"^A" (3G_GF |"E7" E2 e2 _e2 d2 |"Am" cBAB c2 BA |"E7" ^GEGB eBGE |"Am" AEAc ecAc | 
"E7" E2 e2 _e2 d2 |"Am" cBAB"F" c2 BA |"E7" ^GEGB edcB |"Am" A2 A2 A2 :|"^B" (3B_BA | 
"G7" G2 g2 _g2 f2 |"C" edcd e2 dc |"G7" BGBd gdBd |"C" cBcd edcA |"G7" G2 g2 _g2 f2 |"C" edcd e4 | 
"E7" (3EFE^DE edcB |"Am" A2 A2 A2 :|  