Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:2/4
K:Edor
['ef ge', 'B a be e>f ge dg Ae', 'be be'  
X:1
L:1/8
M:2/4
K:Edor
|: A | B>e ef | ge dB | Ae GA/B/ | GA Bc | Be ef | ge d3/2c/4B/ | Ae dc | B2 B :: a | be e>f | 
 ge dg | Ae cd | ef ga | be ef | ge de/g/ | Ae dc | B2 B :: a | be be | be e3/2g/4e/ | ae ae | 
 ae e3/2a/4e/ | be be | be e3/2d/4B/ | Ae dc | B2 B :|  