Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/4
M:3/4
K:G
['G G', 'c B'  
X:1
L:1/4
M:3/4
K:G
|: D E F | G G G | G E F | G3 | G A B | A B A | G F E |1 G3 :|2 G2 |: B | d2 c | B A B | d c B | 
 A2 D | G2 A | B c B | A B A |1 G2 :|2 G3 |]  