Compose harmonious chord progressions to enhance the existing musical composition.
|: B d | d e | c d | B2 | B2 | B d | d d | c c | B2 | A2 | 
 B d | d e | c d | B2 | B2 | B f | f d | e f | B2 | B2 | 
 B f | f f | e e | B2 | A2 | B d | d e | c d | B2 | B2 :|  
X:1
L:1/4
Q:1/4=220
M:2/4
K:D
|:"Bm" B d |"D" d e |"A" c d |"Bm" B2 |"Bm" B2 |"Bm" B d |"D" d d |"A" c c |"Bm" B2 |"A" A2 | 
"Bm" B d |"D" d e |"A" c d |"Bm" B2 |"Bm" B2 |"Bm" B f |"D" f d |"Em" e f |"Bm" B2 |"Bm" B2 | 
"Bm" B f |"D" f f |"Em" e e |"Bm" B2 |"A" A2 |"Bm" B d |"D" d e |"A" c d |"Bm" B2 |"Bm" B2 :|  