Create harmonious chord sequences for the given musical piece.
F | B2 B BAB | c2 c f2 f | d2 d B2 B | ABc FGA | B2 B BAB | c2 c f2 f | 
 egf edc | B2 B B2 :: f | fef def | g2 g g3 | aga fga | b2 b b3 | 
 fef def | g2 a bag | fgf edc | B2 B B2 :|  
X:1
L:1/8
M:6/8
K:Bb
 F |"Bb" B2 B BAB |"F" c2 c f2 f |"Bb" d2 d B2 B |"F" ABc FGA |"Bb" B2 B BAB |"F" c2 c f2 f | 
"Eb" egf"F" edc |"Bb" B2 B B2 :: f |"Bb" fef def |"Eb" g2 g g3 |"F" aga fga |"Bb" b2 b b3 | 
"Bb" fef def |"Eb" g2 a bag |"Bb" fgf"F7" edc |"Bb" B2 B B2 :|  