Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/4
K:G
['', 'g>f gb ab'  
X:1
L:1/8
M:2/4
K:G
 Bd |: g>f gb ab | gG Bd |[M:3/4] g>f gb ab |[M:2/4] g>a gf |[M:3/4] e>f ef/g/ | a/g/f/e/ d>c | 
 Bd gd | f/e/d/c/ BG AF |1[M:4/4] GB GB G2 Bd :|2[M:4/4] GB GB G2 d>c ||[M:2/4] BA GF | GA Bc | 
[M:3/4] d^c de fd | g>f gb ab |[M:2/4] g>a gf |[M:3/4] e>f ef/g/ a/g/f/e/ | d>c Bd gd | 
 f/e/d/c/ BG AF |1[M:4/4] GBGB G2 d>c :|2[M:4/4] GBGB G2 ||  