Generate melodic masterpieces that abide by the suggested chord alterations.
'D', 'G', 'A', 'D', 'G', 'A', 'D', 'D', 'A', 'G', 'G', 'A', 'D'  
X:1
L:1/8
M:3/8
K:G
 A |:"D" dc/d/e/f/ |"G" eag |"A" e/f/ed | cA A |"D" dc/d/e/f/ |"G" eag |"A" e/f/ec |1"D" d2 A :|2 
"D" d2 a |:"A" ge/f/g/a/ | ge/f/g/a/ | ged | cA a |"G" ge/f/g/a/ |"G" ge/f/g/a/ |"A" gec |1 
"D" d2 a :|  