Design a musical arrangement using the alphabetical representation of the given sequence and the supplied motif.
X:1
L:1/8
Q:3/8=110
M:9/8
K:Amix
['def ecA']  
X:1
L:1/8
Q:3/8=110
M:9/8
K:Amix
 def ecA ecA | def ecA Bcd | def ecA ecA | Bge dBG Bcd |:  