Create music compositions that adhere to the given structure and incorporate the provided musical concept.
X:1
L:1/8
Q:1/4=140
M:4/4
K:F
['f2 f2', 'F2 F2'  
X:1
L:1/8
Q:1/4=140
M:4/4
K:F
 fcAc dfeg | f2 f2 f2 fg | afef gefd | c2 c2 c3 e | dBBd cAAc | BGGB Acfc | defd cBAG | 
 F2 F2 F2 z2 :: afcB Afaf | g2 c2 c2 de | fedc defd | c2 A2 A2 fe | dBBd cAAc | BGGB Acfc | 
 defd cBAG | F2 F2 F2 z2 :|  