Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/16
M:2/4
K:Cmin
['G2GF E2D2 C2CD E2F2 GFAF G2c2 =BcdB', "c'2c'2 g2fg agfe defg e2ec d2d=B", 'z2 g^fga g2g=f d4 =Bcde f=efg f2f_e']  
X:1
L:1/16
M:2/4
K:Cmin
|: G2GF E2D2 | C2CD E2F2 | GFAF G2c2 | =BcdB G2g2 | fgfe d2f2 | e2ed c4 | G2=A=B c2Bc | d2d=B G4 | 
 G=A=Bc d2e2 | fgfe d2g2 | efed c2e2 | d2d=B c4 :: c'2c'2 g2fg | agfe defg | e2ec d2d=B | 
 G2G2 G2 z2 | c'2c'2 g2fg | agfe defg | e2ec d2d=B | c2c2 c2 z2 :: g^fga g2g=f | d4 =Bcde | 
 f=efg f2f_e | c4 G4 | e2ef e4 | dcde d4 | c2c2 =BcdB | G8 | G^FGA G2G=F | [DG,]4 =B,CDE | 
 F=EFG F2F_E | C4 G,4 | E2EF E4 | DCDE D4 | C=B,CD EDCB, | C6 z2 :|  