Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Amin
['cAAc BGGB', 'A2 c3 e g3 e G3 B']  
X:1
L:1/8
M:4/4
K:Amin
 cAAc BGGB | cAAB cded | cAAc BGGB | cABG EAAB | cAAc BGGB | cAAB cded | cAAc BGGB | 
 c/B/A BG EA A2 || c3 e g3 e | G3 B dGBG | cBce g3 d | eaag a3 g | geeg fdd=f | ecce dBGB | 
 ABcd e=fed | cABG EAAB ||  