Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
['B2 FD', 'FBB g fBdB fBeg fBdB gccb eBdB']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
 d | B2 FD C2 cd | B2 FD FDdc | BGFD CEDC | B,EDE FBB :: g | fBdB fBeg | fBdB gccb | eBdB dfbg | 
 fdcB FBBg | eBdf Bfdf | efdf ecce | dBFD Bdfd | gecb dBB :|  