Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:2/2
K:C
['g2{a} g^f gece', 'fedc Bagf (ec)'  
X:1
L:1/8
M:2/2
K:C
|: g2{a} g^f gece | gage fdd |1 e | g2{a} g^f gece | fagf ec c2 :|2 f | efge agfe | fagf ec c2 |]: 
 GcEc Gcec | Gceg (fd) d2 |1 GcEc Gcec | Bagf (ec) c2 :|2 agfe fedc | Bagf (ec) c2 |]  