Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:6/8
K:G
['g2 efg d2 BAG']  
X:1
L:1/8
M:6/8
K:G
 d |"G" g2 f"C" efg |"D7" d2 c"G" BAG |"C" c>BA"G" Bcd |1,3"D7" F2 G A2 ||2,4"D7" G2 F"G" G2 :: d | 
"G" g2 g g>fg |"D7" a>ba afd |"G" b2 b"C" a>bg |"A7" f>ge"D7" def |"G" g2 f"C" efg | 
"D7" d2 c"G" BAG |"Am" c2 A"G" Bcd |"D7" G2 F"G" G2 :|  