Compose a piece incorporating the provided motif while adhering to the given musical structure.
X:1
L:1/8
Q:1/2=90
M:2/2
K:Bb
['Bcde fBAB gBaB', 'B2 fBAB gBAB gaba gfgd edcB cBcd'  
X:1
L:1/8
Q:1/2=90
M:2/2
K:Bb
 Bcde fBAB | gBaB bBAB | GBFB EBDB | Ccec BAGF | Bcde fBAB | gBaB bBaB | GeFd EcDB | ecBA B2 B2 :: 
 fBAB gBAB | gaba gfgd | edcB cBcd | edcB BAGF | Bcde fBAB | gBaB bBAB | GeFd EcDB | ecBA B2 B2 :|  