Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/4
M:5/4
K:C
['G/c/ B d c e', 'f d'  
X:1
L:1/4
M:5/4
K:C
 G/c/ | B d c e e | d f e2 G/c/ | B d c e g | f B c2 |: g | f d e c g | f d e c G/c/ | B d c e g |1 
 f d g2 :|2 f B c2 ||  