Create a series of chord progressions to enhance the harmonic aspect of the given piece of music.
a | a f g a | f e/f/ d a | a f g a | f3 a | a f g a | f e/f/ d a | 
 a f g a | f2 d e | e c d e | f e/f/ d e | e c d e | f2 d e | e c d e | 
 f e/f/ d e | e c d e | f2 d |]  
X:1
L:1/4
Q:1/4=217
M:4/4
K:Dmin
 a |"Dm" a f g a |"Dm" f e/f/ d a |"Dm" a f g a | f3 a |"Dm" a f g a |"Dm" f e/f/ d a | 
"Dm" a f g a |"Dm" f2 d e |"Am" e c d e |"Dm" f e/f/ d e |"Am" e c d e |"Dm" f2 d e |"Am" e c d e | 
"Dm" f e/f/ d e |"Am" e c d e |"Dm" f2 d |]  