Design a musical arrangement using the alphabetical representation of the given sequence and the supplied motif.
X:1
L:1/8
Q:3/8=120
M:6/8
K:Bb
['B3 DEF GAB cde', 'B,3 f3 bfd e2 f gec d3']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:Bb
 B3 DEF | GAB cde | dfd cec | BdB AGF | B3 DEF | GAB cde | dcB AFA | B3 B,3 :: f3 bfd | e2 f gec | 
 d3 fdB | A2 B cAF | B3 DEF | GAB cde | dcB AFA | B3 B,3 :|  