Design melodies that correspond to the given chord shifts.
'G', 'C', 'G', 'C', 'D', 'G', 'C', 'D', 'G', 'G', 'C', 'D', 'G', 'C', 'G', 'D', 'G', 'G', 'D', 'G'  
X:1
L:1/8
M:4/4
K:G
"G" g2 dc BGGB |"C" EAAB cdef |"G" g2 dc BGGB |1"C" EG"D" FA"G" G2 (3(def) :|2"C" EG"D" FA"G" G4 |: 
"G" BBdB"C" cdec |"D" ABcA"G" BcdB | GGBG"C" EGce |1"G" dB"D" cA"G" G2 dc :|2"G" dg"D" fa"G" g4 ||  