Compose a piece using the specified musical pattern based on the alphabet notation and provided melodic motif.
X:1
L:1/4
M:3/4
K:Bmin
['B B B2 B f2 f']  
X:1
L:1/4
M:3/4
K:Bmin
 F B B | B2 B | f2 f | c3 | d2 d | B3 | c2 c | A3 | f B B | B2 B | f2 f | c2 c | d3/2 d/ d | 
 c B A | B3- | B3 ||  