Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
Q:1/4=140
M:2/2
K:G
['z gd BGdB Aaag fdef gfgd', 'BGDG EGDG ABcB cedc']  
X:1
L:1/8
Q:1/4=140
M:2/2
K:G
"_rest added" z | gd BGdB | Aaag fdef | gfgd e^cdB | cAdc"^NB1" BGG :: c | BGDG EGDG | ABcB cedc | 
 BGDG EGce | dBcA BGGc | BGDG EGDG | ABcB cedc | BdgB ceag | fdef gGG :|  