Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:4/4
K:F
['cc c2'  
X:1
L:1/8
M:4/4
K:F
|: AG |"F" F2 AA A2 cc |"F" c2 f2 f2 ef |"Bb" g2 f2 d2 B2 |"Gm" d2 cd"C7" cBAG |"F" F2 AA A2 cc | 
"F" c2 f2 f2 ef |"Bb" d2 c2"C7" c2 EF |"F" G2 F2 F2 ::[K:C] G2 |"C" G2 cc c2 BA |"C" G2 gg g2 fe | 
"G7" f2 e2 f2 d2 |"C" efgf"G7" e2 c2 |"C" G2 cc c2 BA |"C" G2 gg g2 fe |"G7" f2 e2 f2 d2 |1 
"C" c6 :|2"C" !fermata!c2 [ec]d"C7" c_B |]  