Write musical pieces that adapt to the predetermined chord shifts.
'C7', 'F', 'C7', 'F', 'Bb', 'Gm', 'C7', 'F', 'F', 'F7', 'Bb', 'G7', 'Cm', 'F7', 'Bb', 'F7', 'Bb', 'Eb', 'Bb', 'F7', 'Bb', 'Bb', 'Eb', 'Ab', 'Eb', 'Bb7', 'Eb', 'Bb7', 'Eb', 'Ab', 'Eb', 'Bb7', 'Eb', 'F7', 'Bb', 'G7', 'Cm', 'F7', 'Bb', 'F7', 'Bb', 'Eb', 'F7', 'Bb'  
X:1
L:1/4
M:3/4
K:F
 d |:"C7" c3 | z G B |"F" A3 | z c d |"C7" c3 | z G B |"F" A3 | z c f |"Bb" f3 | z B d |"Gm" d3 | 
 z A c |"C7" c3 | z G A |1"F" F3 | z c d :|2"F" (F3 | F) z z |:[K:Bb]"F7" .A .A .B | .c .d .e | 
"Bb" .f .g .f | z"G7" e d |"Cm" .e .f .e | z"F7" d c |"Bb" .d .e .d | z e/d/ c/B/ |"F7" .A .A .B | 
 .c .d .e |"Bb" .f .g .f |"Eb" z .g e |"Bb" .d .e .d |"F7" z c f |1"Bb" B3 | z e/d/ c/B/ :|2 
"Bb" B z B |:[K:Eb]"Eb" g3 |"Ab" (e2 c) |"Eb" B =A/B/ c/B/ | (G2 B) |"Bb7" A3 |"Eb" G2 A/G/ | 
"Bb7" F B/=A/ B/c/ | B c/d/ e/f/ |"Eb" g3 |"Ab" (e2 c) |"Eb" B =A/B/ c/B/ | (e2 f) | g2 (a/g/) | 
"Bb7" f2 (g/f/) |"Eb" e3 |1 e z B :|2 e e/d/ c/B/ ||[K:Bb]"F7" A A B | c d e |"Bb" f g f | 
"G7" z e d |"Cm" e f e |"F7" z d c |"Bb" d e d | z e/d/ c/B/ |"F7" A A B | c d e |"Bb" f g f | 
"Eb" z g e |"F7" d e c | z d A |"Bb" B3/2 B/ B | B z z |]  