Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:3/4
K:Bmin
['', 'cF ^Ac', 'gb bg', 'cF ^Ac']  
X:1
L:1/8
M:3/4
K:Bmin
 F |: B2 Bc d/c/B | c2 cd ec | B^A Bc de | f2 b2 f2 | ge ge gb | bg fd cB |1 cF ^Ac f^e | 
 f^e fg fd :|2 cF ^Ac fA | B2 B2 || ba |: g2 ge gb | bg fd cB | cF ^Ac f^e | f^e fg fd | g2 ge gb | 
 bg fd cB |1 cF ^Ac fA | B2 B2 :|2 cF ^Ac f^e | f^e fg f ||  