Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:3/4
K:G
['[Cg]2 [Dd]3 (c', 'B>G B>d (3^c(ec) d>f g>a (3b(gb) (3a(gf)', '[Dd]2 G,3', 'DB, G>B (3A(cA) G>B, D>F (3E(GE) F>A']  
X:1
L:1/8
M:3/4
K:G
{ga} vgf/e/ d3 c | B>G c>A dd- | d>(c B>)G c>A |"^flag." [Cg]2 [Dd]3 (c | B>)G c>A d>D | 
"^flag." [Cg]2 [Dd]3 (c | B>)d c>d B>c | (3A(BA) G3 z :: vB>d (3c(ec) B>G | B>d (3^c(ec) d>f | 
 g>a (3b(gb) (3a(gf) | (3d(fa) g>d BG | B>d (3c(ec) B>G | B>d (3^c(ec) d>f | g>a (3b(gb) (3a(gf) | 
 (3d(fa) g3 z :|{[G,D]} vBd/c/ B3 (A | G>)D E>C DD- | D>E G>D E>C |"^flag." [Dd]2 G,3 (E | 
 G>)D E>C D>G, |"^flag." [Dd]2 G,3 E | G>B A>B G>A | (3F(DC) [B,D]3 z :: G>B (3A(cA) G>B, | 
 D>F (3E(GE) F>A | B>f (3g(eg) (3f(ed) | (3B(dc) B>G DB, | G>B (3A(cA) G>B, | D>F (3E(GE) F>A | 
 B>f (3g(eg) (3f(ed) | (3B(dc) [DB]3 z :|  