Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/4
M:4/4
K:Eb
['c B']  
X:1
L:1/4
M:4/4
K:Eb
 B B e d/c/ | B A G2 | G c B =A | B z B c/d/ | e e e d/c/ | B A G2 | c B B/A/ G | F G/F/ F2 | 
 d c/B/ =A B | e2 d z | e d/f/ e B | c B B/A/ G | F2 E z |]  