Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
Q:1/2=60
M:3/2
K:Bb
['BdBd DEFD E2', 'B,2 Bdfd BdcB A2 F2']  
X:1
L:1/8
Q:1/2=60
M:3/2
K:Bb
 BdBd DEFD E2 C2 | BdBd FBAc B2 B,2 | BdBd DEFD E2 gf | edcB FBAc B2 B,2 :: Bdfd BdcB A2 F2 | 
 DFBF GFGE D2 B,2 | Bdfd BdcB A2 F2 | DFBD CBAc B2 B,2 :|  