Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:2/4
K:Bb
['c B']  
X:1
L:1/8
M:2/4
K:Bb
 c B c2 | c f e f | c2 B c | f d/ c/ B F | B F B2 | c d c B | G F/ G/ B G | F4 |]  