Construct melodies utilizing the provided motif and adhere to the outlined musical structure.
X:1
L:1/8
M:2/2
K:Bb
['B2 (bg) fdcB', '(BG)FE (DE)FD'  
X:1
L:1/8
M:2/2
K:Bb
 uF | B2 (bg) fdcB | AFcF dFcF | B2 (bg) fdcB | FBAc dBB :: uc | (BG)FE (DE)FD | ECC=B cGGA | 
 (BG)FE (DE)FD | B,BAc dBB"^D.C.""_Fine." :|  