Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/4
Q:1/4=120
M:2/2
K:G
['D G']  
X:1
L:1/4
Q:1/4=120
M:2/2
K:G
 D D | G D B, D | G d B G | F E D E | D3 D | G D B, D | G d B G | F E D E | D3 D | A A A3/2 B/ | 
 A/F/ D2 A | B A B c | B3 B | c A d c | B G c B/B/ | A G F E | (D E F2) | z D E F | G G G G | 
 (G d B) F/G/ | A A A G | F/E/ D- D/D/D/D/ | B2 d3/2 c/ | B B d3/2 c/ | B/ A G/ G A | G2 ||  