Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
M:2/2
K:G
['dB B2', 'g2 bg fgaf']  
X:1
L:1/8
M:2/2
K:G
 dB B2 dBGB | dBBA Bdge | dB B2 dBGB | cBce agfe | dB B2 dBGA | BGBd gfga | bg g2 agfa |1 
 gfga bage :|2 gfed Beef |: g2 bg fgaf | gbfg edBd | g2 bg fgaf | gfed Bdef | g2 bg fgaf | 
 gbfg edBd | g3 a aggf |1 gfed Beef :|2 gfed Bdge ||  