Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:3/4
K:Amin
['E>A AA GG AA GA B2 BB', 'd2 e2 AA cc BB GG'  
X:1
L:1/8
M:3/4
K:Amin
 E>A AA GG | AA GA B2 | BB eB/B/ cc/c/ |{GA} BA GG A2 :: c(B c)(d e2) |{ef} e2 B2 d2 | e2 AA cc | 
 BB GG A2 :|  