Construct a musical arrangement using the specified alphabetical sequence and the given motif as a foundation.
X:1
L:1/8
M:4/4
K:Bb
['F DFBd fgfd egGc Accd DFBd fdbd', 'dBB f bfgf bBcB GccB Acce dfBd']  
X:1
L:1/8
M:4/4
K:Bb
 F | DFBd fgfd | egGc Accd | DFBd fdbd | ecAf dBB :: f | bfgf bBcB | GccB Acce | dfBd GBEg | 
 fbce dB B2 :|  