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
['GG/G/ GG/G/ Bd BG', 'z d g>a ba/g/ fa fd e3/2f/4', 'ee/e/ ee/e/']  
X:1
L:1/8
M:2/4
K:G
 D | GG/G/ GG/G/ | Bd BG | AA/A/ AA/A/ | FA FD | GG/G/ GG/G/ | Bd BG | eg f/g/a/f/ | g2 z :| d | 
 g>a ba/g/ | fa fd | e3/2f/4 gf/e/ | dg dB | c/B/c/d/ ed/c/ | Bd gd | eg f/g/a/f/ | g2 z :| z | 
 ee/e/ ee/e/ | eG ce | dd/d/ dd/d/ | dG cd | ee/e/ ee/e/ | ef ga | ge dB | A2 A :|  