Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/4
K:F
['[AF]2 [AF]C'  
X:1
L:1/8
M:2/4
K:F
 C2 |"F" [AF]2 [AF]C | [AF]2 [AF]C |[M:3/4] [AF]2 [AF][GE] [AF][BG] |"C7" [GE]4 [GE][AF] | 
[M:2/4] [BG]2 [BG]C | [BG]2 [BG]C |[M:3/4] [BG]2 [BG][AF] [BG][cA] |"F" [AF]4 :: [cA]2 | 
[M:2/4]"Bb" [dB]2 [cA]2 | [BF]4 |"F" [cA]2 [BG]2 | [AF]4 |[M:3/4]"C7" [GE]3 [AF] [BG]2 |1 
"F" [AF][GE] [AF][BG] :|2"F" [AF]4 |]  