Generate melodic masterpieces that abide by the suggested chord alterations.
'G', 'C', 'D7', 'G', 'G', 'C', 'D7', 'G', 'G', 'D7', 'C', 'G', 'C', 'G', 'D7', 'G'  
X:1
L:1/8
M:3/4
K:G
|:"G" B2 BD G>B |"C" e2 ed c>B |"D7" A2 AD F>A |"G" d2 dc B>A |"G" G2 BD G>B |"C" B2 cB A>G | 
"D7" F>G AD F>A | A2"G" G4 ::"G" G>B Bd d>g |"D7" g>f f2 f2- |"C" f>e ef g>e |"G" e>d dB G>B | 
"C" d>c c2 e>c |"G" c>B B2 d>B |"D7" B>A AD F>A | A2"G" G4 :|  