Compose a musical piece utilizing the given motif as the foundation while maintaining the required musical form.
X:1
L:1/8
M:2/4
K:Bmin
['fB B2', 'B/c/d B/c/d'  
X:1
L:1/8
M:2/4
K:Bmin
|: fB B2 | fB B2 | dd cd | e2 de | fd ec | dB c2 | Bf e/d/c/d/ | B2 B2 :: B/c/d B/c/d | cA A2 | 
 B/c/d B/c/d | e2 de | fd ec | dB c2 | Bf e/d/c/d/ | B2 B2 :|  