Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:4/4
K:Amix
['A3 B c3 d eaec d2 cd', 'eAAA eAgA eAAA BGBd gdBG a3 f']  
X:1
L:1/8
M:4/4
K:Amix
|: A3 B c3 d | eaec d2 cd | eaec Acec | BEEE BdcB | A3 B c3 d | eaec d2 cd | eaec BgeB |1 
 c2 Bc AFEF :|2 c2 A2 A4 |: a3 f g3 e | fedf eAAA | eAgA eAAA | BGBd gdBG | a3 f g3 e | fedf e3 c | 
 d2 fd caec | BgeB cA A2 :|  