Compose a melodious orchestration that adheres to the designated chord structure.
'G', 'D7', 'G', 'D7', 'G', 'C', 'D7', 'G', 'G', 'D', 'A7', 'A7', 'D', 'G', 'C', 'Am', 'D', 'D7', 'G', 'C', 'G', 'D', 'D7', 'G'  
X:1
L:1/8
M:2/2
K:G
 D2 |"G" G2 B2"D7" BcAB |"G" G2 D2"D7" DEDC |"G" B,DGD"C" CB,CE |"D7" DEDC"G" B,2 G,2 | 
"G" GDBG dBed | gfed cBAG |"D" FAdA"A7" GFGB |"A7" AGFE"D" D2 :: d2 |"G" dgdB GBGD | 
"C" CB,CD EDCB, |"Am" A,2 ed cBAG |"D" FGAF"D7" D2 (3def |"G" gdBd"C" ecAc |"G" BdGB"D" AF D2 | 
"D7" dedc BAGF |"G" G2 B2 G2 :|  