Compose a melodious orchestration that adheres to the designated chord structure.
'G', 'C', 'G', 'D7', 'G', 'C', 'G', 'D7', 'G', 'G', 'D', 'C', 'G', 'C', 'G', 'D', 'G', 'D', 'A', 'D', 'G', 'A7', 'D', 'D7'  
X:1
L:1/8
M:6/8
K:G
"^A" d/c/ |"G" B2 B Bgf |"C" e2 e efg |"G" ded dcB |"D7" cAA A2 d/c/ |"G" BcB Bgf |"C" efe efg | 
"G" ded"D7" cBA |"G" BGG G2!fine! :| g/a/ |"^B""G" b2 g"D" a2 f |"C" gfg"G" dcB |"C" cde"G" dgB | 
"D" BAA A2 g/a/ |"G" b2 g"D" a2 f |"A" gfe"D" agf |"G" bag"A7" fge |"D" dgf"D7" ed!D.C.!c |]  