Compose a piece following the given musical structure and incorporating the provided motif.
X:1
L:1/8
M:4/4
K:Bmin
['fede dB B2', 'B2 BA B2 B2'  
X:1
L:1/8
M:4/4
K:Bmin
 fede dB B2 | dBAB AF E2 | fede dB B2 | AEFA B3 z :| B2 BA B2 B2 | AFEF DEFA | B2 BA B2 B2 | 
 AEFA B3 z :|  