Generate chord structures that harmonize with the provided piece of music.
F | F3/2 G/ F | B D C | B,2 C | D3/2 E/ F | G F D | C z F | F3/2 G/ F | 
 B d c | B2 G | F3/2 G/ A | B D C | B, z |]  
X:1
L:1/4
Q:1/4=90
M:3/4
K:Bb
 F |"Bb" F3/2 G/ F | B D"F7" C |"Gm" B,2"F" C |"Bb" D3/2 E/ F | G F D |"F" C z F |"Bb" F3/2 G/ F | 
 B d"F7" c |"Gm" B2"Eb" G |"Bb" F3/2 G/"F7" A |"Bb" B D"F7" C |"Bb" B, z |]  