Develop tunes following the predetermined chord changes.
'G', 'D7', 'G', 'D', 'D7', 'G', 'C', 'D7', 'G', 'D7', 'G', 'C', 'D7', 'G', 'D7', 'G', 'C', 'Dm', 'G7', 'C', 'Dm', 'G7', 'C', 'G7', 'C'  
X:1
L:1/8
M:2/4
K:none
[K:G]"G" .d.d .d.d | de !>!e2 |"D7" dc c/B/A |"G" cB B/A/G | dd dd |"D" df !>!f2 | 
"D7" e/d/c c/B/A | dA Bc :|"G" !>!d2"C" !>!e2 |"D7" cF/F/ FF | !>!e2 !>!f2 |"G" dG/G/ GG | g>g fe | 
 d>d cB |"D7" A/B/c c/B/A |"G" B/c/d d2 | !>!d2"C" !>!e2 |"D7" cF/F/ FF | !>!e2 !>!f2 | 
"G" dG/G/ GG | g>g fe | ed d/c/B |"D7" d/c/d/c/ BA |"G" GB G z |:[K:C]"C" e3 d | c3 B |"Dm" Ad dd | 
 d3 z |"G7" d3 c | B3 A |"C" Gc cc | c3 z | g3 e | d3 c |"Dm" Af ff | f3 e |"G7" dG dG | 
"C" ec a>g |"G7" fB e>d |"C" ce c z :|  