Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:2/2
K:G
['D G2 BA', 'dB g2']  
X:1
L:1/8
M:2/2
K:G
 D |]"G" G2 BA G2 DB | G2 (BG) dGBg | G2 BA G2 AB |"C" cABG"D" ADFA |"G" G2 BA G2 DF | GABc dGBg | 
 bagf g2 (Bd) |"C" cABG"D" ADFA |]"G" dB g2 dB g2 | g2 (Bc) dBdg | GABc (dB) g2 |"C" edcB"D" ADFA | 
"G" dB g2 dB g2 | g2 (Bc) dBdg |"G" bagf"C" egdb |"C" caBg"D" ADFA |]  