Create melodies that conform to the specified chord modifications.
'F', 'C7', 'F', 'Gm', 'Bb', 'C7', 'F', 'C7', 'F', 'C7', 'F'  
X:1
L:1/8
M:3/4
K:none
[K:F]"F" ca ca ca |"C7" ac' bg e2 | cg cg cg |"F" gb af c2 | ca ca ca |"Gm" ac' bg d2 | 
"Bb" db db"C7" eg |"F" f2 z2 z2 ::"C7" ga ba gf | ef gf ed | cd ed cB |"F" Ac fa c'2 | 
"C7" ga ba gf | ef gf ed | cd ec de |"F" f2 z2 z2 :|  