Construct an appropriate set of chord movements that support the existing musical arrangement.
|: BB BB | AF FF | BB BB | A2 cc | Gc cc | Ac cc | cB AG | F2 F2 :|  
X:1
L:1/8
M:2/4
K:F
|:"Bb" BB BB |"F" AF FF |"Bb" BB BB |"F" A2 cc |"C7" Gc cc |"F" Ac cc |"C7" cB AG |"F" F2 F2 :|  