Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
M:4/4
K:Bb
['B/B/B B2 B>df>d', 'f>B e/d/c/B/']  
X:1
L:1/8
M:4/4
K:Bb
 F | B/B/B B2 B>df>d | B/B/B B2{AB} c>BA<F | B/B/B B2 B>df>d | e<gd<f{d} c>BA<F :| 
 f>B e/d/c/B/ f<Be>g | f>B e/d/c/B/{AB} c>BAF | f>B e/d/c/B/ f<Bd>f | e<gd<f{AB} c>BA<F | 
 f>B e/d/c/B/ f<Be>g | fB e/d/c/B/ A/B/c/B/ AF | f>B e/d/c/B/ f<Bd<f | e<gd<b{d} c>BA<F ||  