Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
Q:1/4=90
M:6/8
K:Eb
['z3 ddd c3 e3 BAF']  
X:1
L:1/8
Q:1/4=90
M:6/8
K:Eb
"Eb" GA=A BcB |"Bb" B3 G3 |"Cm" EEE"Bb" FFF |"Bb" G3 z3 |"Eb" GA=A BcB | B3"Cm" e3 | 
"Bb/F" FDF"F7" FEF |"Bb" D3 z3 |"Bb7" AAA AAA |"Eb" A3 G3 |"Ab" ccc edc |"Eb" B3 z3 | 
"Cm" eee"G7" ddd |"Ab" c3 e3 |"Eb/Bb" BBB"Bb7" BAF |"Eb" G3 z3 |"Cm" eee"G7" ddd |"Ab" c3 e3 | 
"Eb/Bb" BBB"Bb7" BAF |"Eb" E3 z3 |]  