Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
Q:1/8=120
M:2/4
K:G
['G>A BG EG ED', 'dB G>A']  
X:1
L:1/8
Q:1/8=120
M:2/4
K:G
 D | G>A BG | EG ED | G>A Bd | BA AB/A/ | G>A BG | EG ED | BG D/E/F/G/ | AGG :| B | dB G>A | 
 BG ED | dB G>A | BA AB/c/ | dB G>A | BG ED | BG D/E/F/G/ | AGG :|  