Design chord structures to suitably support the given melody.
F B2 F B2 Bc | ed c2 d4 | f2 fg fe d2 | cBAG F4 | F B2 F B2 Bc | 
 ed c2 d4 | f2 fg fe d2 | cB A2 B4 :: g2 ga ba g2 | fdfg f4 | 
 c2 cd ed c2 | Bcde f3 b | g2 ga ba g2 | fdfg f4 | 
 F B2 c ed c2 | cB A2 B4 :|  
X:1
L:1/8
M:2/2
K:Bb
"Bb6" F B2 F B2 Bc |"Cm7" ed c2"Bb6" d4 | f2 fg fe d2 |"Cm7" cBAG"F7" F4 |"Bb6" F B2 F B2 Bc | 
"Cm7" ed c2"Bb6" d4 | f2 fg fe d2 |"F7" cB A2"Bb6" B4 ::"Gm7" g2 ga ba g2 |"Bb6" fdfg f4 | 
"F7" c2 cd"Cm7" ed c2 |"Bb6" Bcde f3 b |"Eb6" g2 ga"Gm7" ba g2 |"Bb6" fdfg f4 | 
"Bb6" F B2 c"Cm7" ed c2 |"F7" cB A2"Bb6" B4 :|  