Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:6/8
K:Bb
['BGB BGB FBB Bcd', 'g fdf']  
X:1
L:1/8
M:6/8
K:Bb
|: F2 B BdB | BGB BGB | FBB Bcd | ecc fed | cBB Bdc | BGB BGB | FBB Bcd | ecA B3 :: 
 !fermata!b2 g fdf | b2 g fdf | fgf fed | dcc c3 | b2 g fdf | b2 g fdf | BcB Bcd | ecA"^D.C." B3 :|  