Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
Q:1/4=140
M:2/2
K:Bb
['B>AB>d B>AB>d B>ba>g f>dB>d', 'e>dc>B B>AG>F']  
X:1
L:1/8
Q:1/4=140
M:2/2
K:Bb
 F2 | B>AB>d B>AB>d | B>ba>g f>dB>d | c>Bc>d e>dc>B | A>Bc>B A>FG>A | B>AB>d B>AB>d | 
 B>ba>g f>dB>d | c>de>d f>ec>A | B2 B2 B2 :: (AG) | F>Ac>e F>Bd>f | e>dc>B B>AG>F | 
 G>B"^tr" B2 F>B B2 | c>de>c B>AG>F | (G>g)"^tr" g2 F>f"^tr" f2 | e>dc>B B>AG>F | c>de>d f>ec>A | 
 B2 d2 B2 :|  