Design a musical arrangement using the alphabetical representation of the given sequence and the supplied motif.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
['B2 B2 DEFD C2 c2 c3 d', 'z2 dBfd cAfc Ggbg f=edc =ecge fcaf']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
 B2 B2 DEFD | C2 c2 c3 d | edgf edcB | A2 F2 F2 ED | EGFA GBAc | Bdce d2 g2 | fdcB ecBA | 
 B2 B,2 B,2 z2 :: dBfd cAfc | Ggbg f=edc | =ecge fcaf | gcbg f=edc | dBAG Acfa | gb=eg f2 gf | 
 ecfe dBed | cAdc BAGF :|  