Compose a piece of music utilizing the given alphabet sequence and motif.
X:1
L:1/8
Q:1/2=92
M:4/4
K:Bb
['F2 B2 B2 d2 c>dc>B A2 A>B', 'f>e d2']  
X:1
L:1/8
Q:1/2=92
M:4/4
K:Bb
|:"^A" F2 B2 B2 d2 | c>dc>B A2 A>B | c2 F2 G2 B2 | A3 G F4 ::"^B" f>gf>d e2 c2 | f>ef>d e2 c2 | 
 f2 f>e d2 g2 | e3 d c2 A>B | c2 f>e d2 d2 | c>dc>B A2 A>B | c2 F2 G2 B2 | A3 G F4 :|  