Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/8
M:2/4
K:G
['A2 cB']  
X:1
L:1/8
M:2/4
K:G
 GABc | A2 cB | G4 | GBce | g2 ag | =fedc | =f2 ag | fedc | A2 cB | G4 |]  