Develop musical pieces by incorporating the given chord changes.
'C', 'G7', 'C', 'G7', 'C', 'C', 'C', 'F', 'G7', 'C', 'G7', 'C', 'C', 'F', 'C7', 'F', 'Bb', 'F', 'C7', 'F'  
X:1
L:1/8
M:2/4
K:C
 G |:"C" cc/c/ cd | ee/e/ ee |"G7" dc dg |"C" e2 cG | cc/c/ cd | ee/e/ ee |"G7" dc de |1 
"C" c2 z G :|2"C" c2 z e |:"C" gg fe |"F" a2 z d |"G7" ff ed |"C" g2 z c | ee dc |"G7" d>g gf | 
 f2 d2 |1"C" cc ce :|2"C" cc c z ::[K:F]"F" F2 G2 | A2 z G/A/ | BA GF |"C7" GE C2 | G2 A2 | 
 B2 z A/B/ | cB AG |"F" Ad c2 | A2 B2 | c2 z d/e/ | fe gf |"Bb" fd B2 | fe/f/ g/f/e/d/ | 
"F" cf cA/B/ |"C7" cB AG |"F" FA F2 :|  