Design a musical arrangement using the alphabetical representation of the given sequence and the supplied motif.
X:1
L:1/8
M:2/2
K:A
['cdef ecac', 'E2 E2', 'aece fgaf']  
X:1
L:1/8
M:2/2
K:A
|: cdef ecac | ecac dB B2 | cdef ecac | dfed cA A2 :: E2 E2 A2 Ac | BABd cAFA | E2 E2 A2 Ac | 
 BABc Acec | E2 E2 A2 Ac | BABc cAFA | E2 E2 Acec | BABc A2 A2 :: (3efg | aece fgaf | ecBd cAFA | 
 aece fgaf |1 ecBc A2 A2 :|2 ecBc A2 :|  