Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/4
Q:3/4=110
M:6/4
K:D
['e f', 'e f B c2 d'  
X:1
L:1/4
Q:3/4=110
M:6/4
K:D
 d | f3/2 g/ a a3/2 b/ a | g a f e f g | f/g/ a A c2 A | d3- d2 B | c d e e3/2 d/ e | f e f g2 a | 
 a b f ^g2 e | a3 a2 :: f/g/ | a3/2 b/ a g2 f | f3- f2 f | f3/2 e/ d c2 B | B3- B2 B | c A2 d2 e | 
 e f B c2 d | e f B c2 d | d3- d2 :|  