Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/8
M:2/2
K:Bb
['(GA) BABc dcd^f g^fga =fabg fdbg fdcd', 'G2 g2 gfd^f gabg gfdf GFDF BABc']  
X:1
L:1/8
M:2/2
K:Bb
 (GA) | BABc dcd^f | g^fga =fabg | fdbg fdcd | BAG^F GFDF | G2 (GA) BABG | F2 (FG) AGFD | 
 GABc dcBA | B2 G2 G2 :: g2 | gfd^f gabg | gfdf GFDF | BABc dcd=e | fcdB AGFD | G^FGA BABc | 
 BFdB AFec | d^fga bag=f | d2 g2 g2 :|  