Compose a piece by incorporating the set musical pattern in its alphabetical form along with the given melodic subject.
X:1
L:1/4
M:4/4
K:Bmin
['B B', 'd f']  
X:1
L:1/4
M:4/4
K:Bmin
 B2 B B | F (F/^G/) ^A F | B B (^A/B/)(c/d/) | e e e (f/>e/) | d B B B | F F/^G/ ^A F | 
 B B (^A/B/)(c/e/) | d B B2 || d f d f | d f f (e/d/) | c e c e | (c3/2 d/) (e/f/e/c/) | 
 B d Tc3/2 B/ | F F F2 | d d/>d/ d (c/d/) | e e/>e/ e (d/e/) | f (f/>g/) (f/e/)(d/c/) | 
 B (d/>c/) B2 ||  