Develop tunes following the predetermined chord changes.
'C', 'G', 'C', 'F', 'G7', 'C', 'G7', 'C', 'A7', 'D7', 'G7', 'C', 'A7', 'D7', 'G7', 'C', 'G7', 'C'  
X:1
L:1/4
Q:1/8=200
M:2/2
K:C
 G/A/ |"C" c B A G | c d e/ g A/ | c B A G |"G" B/ d B/ d A/B/ |"C" c B A3/2 A/ | c d e/ g e/ | 
"F" a a/b/ a/e/c/d/ |1"G7" e d"C" c :|2"G7" e d"C" c2 |]"A7" a2 a a/b/ | a g e ^c | 
"D7" d d/d/ d e | d c A2 |"G7" B/A/ B A/ G A/ | B/d/ B A/ G B/ |"C" c c d ^d | e e g ^g | 
"A7" a a/a/ a b | a g e3/2 ^c/ |"D7" d d/d/ d e | d c A _B- |"G7" B/A/ B A/ G A/ | B/d/ B A/ G B/ | 
"C" c/B/c/d/"G7" e/g/e/d/ |"C" c3/2 [Gc]/- [Gc] |]  