Compose harmonious chord progressions to enhance the existing musical composition.
f/g/ |: a f e d/e/ | f e d3/2 f/ | a f e d | B3/2 c/ B f/g/ | a f e d/e/ | f e d3/2 e/ | 
 f e d B | A3/2 B/ A A- :| A B d3/2 A/ | B d2 B | A B d g | B3/2 c/ B A- | 
 A B d3/2 e/ | f e d3/2 e/ | f e d B | A3/2 B/ 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 :|  