Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
Q:1/4=150
M:3/4
K:Gmix
['(A3 B)']  
X:1
L:1/8
Q:1/4=150
M:3/4
K:Gmix
 (A3 G) F2 | G2 (A3 B) | A4 A2 | A2 (A3 B) | d4 (dc) | (BA) (ABcB) | G6 | (A3 G) F2 | G2 (A3 B) | 
 A4 A2 | (BA) (G2 F2) | G2 (A3 B) | (AG) (AG F2) | G6 ||  