Craft a musical composition following the provided chord structure.
'D', 'G', 'D', 'D', 'G', 'A', 'D', 'G', 'D', 'D', 'G', 'A'  
X:1
L:1/4
M:4/4
K:D
 f/g/ |:"D" a f e d/e/ | f e d3/2 f/ | a f e d |"G" B3/2 c/ B f/g/ |"D" a f e d/e/ | f e d3/2 e/ | 
"D" f e"G" d B |"A" A3/2 B/ A A- :|"D" A B d3/2 A/ | B d2 B | A B d g |"G" B3/2 c/ B A- | 
"D" A B d3/2 e/ | f e d3/2 e/ |"D" f e"G" d B |"A" A3/2 B/ A :|  