Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:2/2
K:G
['D2 G2 dG (3(BAG) dG AGFG ABcA', '(Bd) (3(gag) (fd) edBG'  
X:1
L:1/8
M:2/2
K:G
 D2 | G2 dG (3(BAG) dG | AGFG ABcA | BAGF GABc | de=fd cA^FA | B>G{A} (3(GFG) BGAG | FGAB cBcA | 
 BdGB cBAG | FDEF G2 || (Bd) | (3(gag) (fd) edBG | FDAD BDAD | E2 (EF) GFGA | 
 (3(Bcd) (3(cde) d2 (Bd) | (3(gag) (fd) edBG | (3(FED) (AD) BDAD | (3(GAG) (FE) DGBd | cDEF G2 ||  