Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
Q:1/8=128
M:4/4
K:Bb
['G/F/E/D/ GC Cd/e/ f>d f/e/d/c/ cB']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:Bb
|: d | B2 F>D GC Cd/c/ | B>F GF B2 Bd/c/ | B>F G/F/E/D/ GC Cd/e/ | f>d f/e/d/c/ cB Bd | 
 B2 F>D GC Cd/c/ | B>F GF B2 Bd/c/ | B>F G/F/E/D/ GC Cd/e/ | f>d f/e/d/c/ cB Bd | 
 B>d fe/d/ dc cd/c/ | B>d fe/d/ c/B/c/d/ B>d | B>d g/f/e/d/ dc cd/c/ | B>F G>F B2 B>d | 
 B>d fe/d/ dc cd/c/ | B>d g/f/e/d/ c/B/c/d/ B>d | G>B G/F/E/D/ GC Cd/e/ | f>d f/e/d/c/ cB B :|  