Create musical pieces following the given structure and incorporating the suggested musical theme.
X:1
L:1/8
M:2/2
K:G
['e>d B2', 'g2 ab'  
X:1
L:1/8
M:2/2
K:G
 G>B | d2{f} e>d B2 G>B | d2 e>d B2 g>f | e>d e>f g>f g>b | aga>b a2 G>B | d2{f} e>d B2 G>B | 
 d2{f} e>d B2 g>f | e>fg>e fgab | g2 a>b g2 :: ab | a>ff>d e>gg>e | d>BB>G A2 GA/B/ | 
 c>Bc>d e>de>g | f>ga>b a2 GB | d2{f} e>d B2 GB | d2 e>d B2 g>f | e>fg>e f>ga>b | g2 ab g2 :|  