Craft songs that comply with the predetermined chord transitions.
'Bb', 'F7', 'Bb', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'Bb', 'F7', 'Bb', 'F7', 'Bb'  
X:1
L:1/4
M:43/44
K:Bb
|: (3f/g/a/ |"Bb" b d d d | B d d d |"F7" f e/d/ e |"Bb" g f/=e/ f |"Bb" b d d d | B d d d | 
"F7" f e/d/ e/f/ |"Bb" d2 :: d |"F7" d c/=B/ c2 |"Bb" e d/^c/ d2 |"F7" f e/d/ e/f/ | 
"Bb" g f/e/ (3f/g/a/ |"Bb" b d d d | B d d d |1"F7" f e/d/ e/f/ |"Bb" d2 :|2"F7" f =e/f/ g/a/ | 
"Bb" b2 |]  