Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:4/4
K:Gmin
['B,3 G, A,B,CA, B,DCF DFGA BAGA Bcdg', 'gfdc BG (3GGG FGAc dAcA GFDF GD'  
X:1
L:1/8
M:4/4
K:Gmin
 B,3 G, A,B,CA, | B,DCF DFGA | BAGA Bcdg | bgfa g3 a | bg (3ggg fd (3ddd | cAdA cfdc | 
 BG (3GGG FDCD |1 FdcA GEDC :|2 FdcA G4 || gfga gd (3ddd | gbaf gfdc | BG (3GGG FGAc | dAcA GFDF | 
 GD (3DDD B2 (3BBB | cBGF GABc | dg (3gag bgdc |1 BdAF GABd :|2 BdAF GDA,C ||  