Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:2/4
K:A
['b a b']  
X:1
L:1/8
M:2/4
K:A
 B B B3/2 B/ | B3/2 c'/ b b | a b a b | B4 | B3/2 B/ A F | F E2 e | F2 A2 | E4 |]  