Design melodies that correspond to the given chord shifts.
'F', 'Bb', 'C7', 'F', 'Bb', 'C7', 'F', 'F', 'C7', 'F7', 'Bb', 'F', 'C7', 'F', 'Bb', 'F7', 'Bb', 'F7', 'Bb'  
X:1
L:1/4
M:3/4
K:F
"F" F/>A/ c c |"Bb" d/>c/ B B |"C7" C/>E/ G G |"F" d/>c/ A2 | F/>A/ c c |"Bb" d/>c/ B B | 
"C7" C/>E/ G d/>c/ |"F" .F !>!F z ::"F" F A c |"C7" B/>A/ G G |"F7" c F A |"Bb" B A/>G/ F | 
"F" F A c |"C7" B/>A/ G G | c/>c/ c E |"F" .F !>!F z ::[K:Bb]"Bb" .B F3/2 d/ | .B F3/2 d/ | 
"F7" A e/>d/ c |"Bb" F d/>c/ B | .B F3/2 d/ | .B F3/2 d/ |"F7" c e A |"Bb" .B !>!B z :|  