Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
['B>c de f>f', 'B>c de f>f']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
 F | B>c de | f>f ed/e/ | ff BB | c/d/c/B/ AF | B>c de | f>f ea | f/g/f/e/ dF | B2 z :: f | 
 B>c de | f>f e2 | aa af | a/af/ ab | B>c de | f>f ea | f/g/f/e/ dF | B2 z :|  