Develop tunes following the predetermined chord changes.
'Bb', 'Eb', 'Bb', 'Eb', 'Ab', 'Eb', 'Bb', 'Bb7', 'Eb'  
X:1
L:1/8
Q:1/4=100
M:3/4
K:Eb
 G2 |"Bb" GF F2 A2 |"Eb" AG G2 B2 | B3 G EG |"Bb" F4"Eb" G2 | AB"Ab" c3 c |"Eb" cB B2 B2 | 
"Bb" B3 B"Bb7" AF |"Eb" E4 |]  