Design a suitable chord progression that aligns with and enriches the provided tune.
"^A" |: vA3/2 A/ A B | (d e) f2 |1,3 e d B d | f e vf/ua/- a :|2,4 e d B G | 
 A2 A2 :|"^B" |: va3/2 a/ a b | (a g) f2 |1,3 e d B d | f e vf/ua/- a :|2,4 
 e d B G | A2 A2 :|  
X:1
L:1/4
M:4/4
K:D
"^A" |:"D" vA3/2 A/ A B |"D" (d e) f2 |1,3"G" e d B d |"A" f e vf/ua/- a :|2,4"G" e d B G | 
"A" A2 A2 :|"^B" |:"D" va3/2 a/ a b |"D" (a g) f2 |1,3"G" e d B d |"A" f e vf/ua/- a :|2,4 
"G" e d B G |"A" A2 A2 :|  