Construct a musical piece that follows the designated lettered structure and integrates the provided motif throughout.
X:1
L:1/8
M:4/4
K:Bmin
['ABBB eBed- decA BcdB cBBB eBed- |1', 'eccc Aced-', 'eBed- decA', 'acca ecaf-']  
X:1
L:1/8
M:4/4
K:Bmin
 ABBB eBed- | decA BcdB | cBBB eBed- |1 decA BddB :|2 decA B3 d || ABBB aAaf- | feef edcd | 
 ABBB aAaf- |1 feae fecd :|2 feae f z3 || eccc Aced- | decA BcdB | eccc Aced- |1 d z c z B3 c :|2 
 decA BcBA || Bfff eBed- | decA BcdA | BffB eBed- | decA BcBA | BffB eBed- | decA BcdA | 
 Bfff eBed | decA BcBA || acca ecaf- | feef edcd | acca ecaf- | faea decd :|  