Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:2/4
K:G
['GB GB', 'dc Bc d2 F/G/A/c/ BG']  
X:1
L:1/8
M:2/4
K:G
 D |"G" GB GB | GB c/B/A/G/ |"D7" FA FA | FA d/c/B/A/ |"G" GB GB | GB d2 | 
"C" c/B/A/G/"D7" F/G/A/c/ |"G" BG G :: B/d/ |"G" gf/e/ dc | Bc d2 |"D7" gf/e/ dc | Bc A2 | 
"G" gf/e/ dc | Bc d2 |"C" c/B/A/G/"D7" F/G/A/c/ |"G" BG G :|  