Create compositions based on the given chord modifications.
'C', 'G7', 'C', 'G7', 'C', 'F', 'C', 'G7', 'C', 'F', 'C', 'G7', 'C', 'F', 'C7', 'F', 'C7', 'F'  
X:1
L:1/4
M:3/4
K:none
[K:C]"C" e c c |"G7" B/d/ F F | d B B |"C" c/e/ G G | e c c |"G7" B/d/ F F | d B/B/ B |"C" c c z :: 
"F" A2 c |"C" G2 c |"G7" B/d/ F F |"C" E/G/ c c |"F" A2 c |"C" G2 c |"G7" B/d/ F/G/ A/B/ | 
"C" c c z ::[K:F]"F" A E F | d2 c |"C7" B D E |"F" F/E/ F/G/ A | A E F | d2 c |"C7" B D3/2 E/ | 
"F" F F z :|  