Develop tunes following the predetermined chord changes.
'G', 'D', 'G', 'D', 'Am', 'D', 'G', 'C', 'D', 'G', 'D', 'G', 'D', 'D', 'G', 'D', 'G', 'G', 'D', 'G', 'G', 'D', 'F', 'D', 'G', 'D', 'G', 'D', 'D', 'G', 'D', 'G', 'G', 'D', 'G'  
X:1
L:1/8
M:4/4
K:G
|:"G" DGGB"D" A2 Bc |"G" dgfd"D" cA F2 |"Am" ABcA"D" dedc |"G" B2"C" AG"D" FA D2 | 
"G" DGGB"D" A2 Bc |"G" dgfd"D" cABc |"D" defa gfdc |1"G" Bd"D"cA"G" G4 :|2"G" Bd"D"cA"G" G2 Bc |: 
"G" d3 g gaba | gage"D" fade |"F" =f3 e fgag |"D" fdga gfdc |"G" BGGF G2"D" Ac |"G" Bdge"D" fgag | 
"D" f2 ge fdcA |1"G" Bd"D"cA"G" G2 Bc :|2"G" Bd"D"cA"G" G4 ||  