Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:2/4
K:G
['GG/G/ BG FD D2 dd e/e/d/c/ BG'  
X:1
L:1/8
M:2/4
K:G
"G" GG/G/ BG |"D7" FD D2 | dd e/e/d/c/ |"G" BG G2 |]:"G" Bd/d/ cB |"Am" AE E2 | 
"D7" D/D/D/D/ EF/D/ |"G" GG G2 :|  