Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/4
M:3/4
K:G
['d d/B/G/B/', 'A A'  
X:1
L:1/4
M:3/4
K:G
 B/c/ | d d/B/G/B/ | g f e | d d/B/G/B/ | [DA]2 A/B/ | c c/A/F/A/ | e d c | B B/A/B/c/ | d2 B/c/ | 
 d d/B/G/B/ | g f e | d d/B/G/B/ | [DA]2 A/B/ | c c/A/F/A/ | e d B | d c [Ac] | [G,G] z ::[K:D] A | 
 A f d | [Ae]2 A | A a g [Af]2 f | e e/d/e/f/ |{f} g e c | d d/c/d/e/ | f d A | [DA] [Af] [Dd] | 
 [Ae]2 A | A a [eg] |{e} [fA]2 f | e e/c/e/g/ | b a f | a g [ce] | [Dd] z :|  