Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:6/8
K:G
['B2 B', 'B2 c']  
X:1
L:1/8
M:6/8
K:G
 G/A/ | B2 B G2 G | c2 c c2 B | A2 A AGA | B2 c d2 c | B2 B G2 G | c2 d e2 c | B2 B AGA | 
 (G3 G2) :: B2 c d3 | e2 d d3 | B2 c d3 | g2 e d3 | B2 B G2 G | c2 c c2 B | A2 A AGA | B2 c d2 c | 
 B2 B G2 G | c2 d e2 c | B2 B AGA | (G3 G2) :|  