Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/4
M:6/8
K:G
['e d', 'e e6 :|2 g a g f'  
X:1
L:1/4
M:6/8
K:G
 A/B/c/ d/e/f/ |[M:9/8] A,/C/C/ D/F/F/ G/B/B/ |[M:4/4] A B c d ||[K:Bb] e4 | 
[K:Gb][M:6/8] e d e e d c | d e f f e d |1 e f g g f e | e6 :|2 g a g f e d | c6 |]  