Develop tunes following the predetermined chord changes.
'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'F7', 'Bb', 'Bb', 'F7', 'F', 'F7', 'Bb', 'Eb', 'Bb/F', 'F7', 'Bb', 'Eb', 'Bb'  
X:1
L:1/4
Q:1/4=100
M:4/4
K:Bb
"Bb" D3/2 D/ E D |"F7" C3/2 C/ D C |"Bb" B,3/2 B,/ E D |"F7" C D"Bb" B,2 | D3/2 D/ E D | 
"F7" C3/2 C/ D C |"Bb" B,3/2 B,/ E D |"F7" C D"Bb" B, z ||"Bb" B3/2 A/ G F |"F7" E3 z | 
"F" A3/2 G/ F"F7" E |"Bb" D3 z | D3/2 E/ G F | B3/2 A/"Eb" A G |"Bb/F" F3/2 E/ D"F7" C | 
"Bb" B,-"Eb" B,-"Bb" B, z |]  