Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
M:4/4
K:G
['G>G (3BGB', 'G>G (3BGB'  
X:1
L:1/8
M:4/4
K:G
 D | G>G (3BGB c>A F>A | G>G (3BGB d>B G>G | (3cec A>A (3BdB G>G | A>B c>B (3ABG (3FED | 
 G>G (3BGBc>A F>A | G>G (3BGB d>B G>G | (3cec A>A (3BdB G>G | (3EcB (3AGF G2 G :: d | 
 g>g (3dcB (3ABc (3def | g>g (3dBd (3ecA A>A | g>g (3bge f>g (3afd | (e/f/g)e (3edc d>d (3dcB | 
 c>d (3ecA B>c (3dBG | A>B c>B(3ABG (3FED | G>G (3BGB c>A F>A | G>G (3BGB d>B G>G | 
 (3cec A>A (3BdB G>G | (3EcB (3AGF G2 G :|  