Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
['B AFED', 'D3 f defd gfef defd ecBA defd']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
 B | AFED G2 GB | AFED E3 B | AFED G3 B | AFdF D3 :: f | defd gfef | defd ecBA | defd gfeg | 
 (fg/a/) ec d3 :|  