Design an agreeable chord progression that fits well with the given music piece.
f/g/f/e/ dB | AD F>A | GE e>d | cB c/B/A | f/g/f/e/ dB | AD F>A | 
 GE ec/d/ |1 ed de :|2 ed dB |: Af f/e/f | Ag g/f/g | Af f/e/f | 
 g/f/e/d/ cB | Af f/e/f | Ag g/f/g | fg/f/ ec/d/ |1 ed dB :|2 
 ed de |]33 ed d2 |]  
X:1
L:1/8
M:2/4
K:D
"D" f/g/f/e/ dB |"D" AD F>A |"A7" GE e>d |"A7" cB c/B/A |"D" f/g/f/e/ dB |"D" AD F>A | 
"A7" GE ec/d/ |1"A7" ed"D" de :|2"A7" ed"D" dB |:"D" Af f/e/f |"G" Ag g/f/g |"D" Af f/e/f | 
"A7" g/f/e/d/ cB |"D" Af f/e/f |"G" Ag g/f/g |"D" fg/f/"A7" ec/d/ |1"A7" ed"D" dB :|2 
"A7" ed"D" de |]33"A7" ed"D" d2 |]  