Construct music pieces following the indicated chord shifts.
'G', 'D7', 'G', 'C', 'G', 'Am', 'D7', 'D7', 'G', 'G', 'Am', 'D7', 'G', 'A7', 'D7', 'G', 'C', 'D7', 'G', 'D7', 'G'  
X:1
L:1/8
M:2/2
K:G
 D2 |:"G" G2 G2"D7" FGAF |"G" GBde dBGB |"C" c2 cA"G" B2 BG |1,3"Am" AGFE"D7" D2 EF :|2,4 
"D7" AGFA"G" G2 :: D2 |"G" GBdB GBdB |"Am" ABcB"D7" AGFA |"G" GBdB GBdB |"A7" Ad^ce"D7" d2 D2 | 
"G" GBdB GBdB |"C" c2 cB AGFE |"D7" DEFG ABcd |"G" BG"D7"AF"G" G2 :|  