Write musical pieces in accordance with the designated chord shifts.
'Eb', 'Bb7', 'Eb', 'Bb7', 'Eb'  
X:1
L:1/4
M:2/2
K:Eb
|:"Eb" E E E2 | G B G E |"Bb7" F F F2 | D F D B, |"Eb" E E E2 | G B G E |"Bb7" B A G F | 
"Eb" E2 E2 :|  