Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:2/2
K:Bdor
['ed cB cd |1,3 e2 f2 :|2,4']  
X:1
L:1/8
M:2/2
K:Bdor
|:"Bm" ba gf | gf ed | cB cd |1,3 e2 f2 :|2,4 B4 ::"Bm" dd cB | ef ed | cB cd |1,3 e2 f2 :|2,4 
 B4 :|  