Develop a harmonic arrangement based on the specified chord sequence.
'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'Cm', 'F7', 'F7', 'Bb', 'Cm', 'F7', 'Bb'  
X:1
L:1/8
M:none
K:Bb
 (3FGA |[M:2/4]"Bb" B2 F2 |"F7" c2 F2 |[M:3/4]"Bb" Fd d2"F7" c2 |"Bb" B2 AG"F7" F2 | 
[M:2/4]"Bb" B2 F2 |"F7" c2 F2 |[M:3/4]"Bb" Fd dB"F7" cA |"Bb" B3 z ::"F7" Bc |[M:2/4]"Bb" d2 B2 | 
"Cm" e2 c2 |[M:3/4]"F7" f2 fg fe |"F7" c2 cA F2 |[M:2/4]"Bb" d2 B2 |"Cm" e2 c2 | 
[M:3/4]"F7" f2 fg fd |"Bb" B3 z :|  