Assemble a piece of music following the alphabetical representation and incorporating the provided motif.
X:1
L:1/8
M:4/4
K:Bb
['f2 dB g2 gb', 'B4 d2 dB cAGF f2 fd ecBA', 'B2 B>A BFDB,']  
X:1
L:1/8
M:4/4
K:Bb
|: f2 dB g2 gb | fdcB cAGF | f2 dB g2 gb | fdec B4 :: d2 dB cAGF | f2 fd ecBA | gfef gabg | 
 fdec B4 :: B2 B>A BFDB, | B2 B>A BFDB, | Bcde fgfe | dBcA B2 B,2 :|  