Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
Q:1/4=136
M:4/4
K:Bb
['B>df>b b>ag>f g2 Tg2 f2 e>dc>B']  
X:1
L:1/8
Q:1/4=136
M:4/4
K:Bb
|:"^A""Bb" f>df>d"Gm" B>dc>B |"Cm" c>dB>c"F" A2 F2 |"Eb" G>B"F"A>c"Gm" B>d"F/A"c>e | 
"Bb" d<f"Cm"e>d"F" d2 c2 |"Bb" f>df>d"Gm" B>dc>B |"Cm" c>dB>c"F" A2 F2 | 
"Eb" G>B"F"A>c"Gm" B>e"Cm"d>c |"F" d2 Tc2"Bb" B4 ::"^B""Bb" B>df>b b>ag>f | 
"Eb" g2 g2"Bb/D" Tg2 f2 |"Cm" g>fe>d"Cm/Bb" e>dc>B |"F/A" A2 TB2"F7" c2 c2 |"Bb" B>df>b b>ag>f | 
"Eb" g2 g2"Bb/D" Tg2 f2 |"Cm" g>fe>d"Cm/Bb" e>dc>B |"F7" F2 TA2"Bb" B4 :|  