Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/4
Q:1/4=140
M:4/4
K:G
['G d B B', 'G2 F3/2 G/ A B c B']  
X:1
L:1/4
Q:1/4=140
M:4/4
K:G
|: G d B B | A/B/A/G/ F D | G d B B | d c/B/ A2 | G d B B | A/B/A/G/ F D | E E c B/A/ | F2 G2 :: 
 F3/2 G/ A B | c B A G/F/ | G E c d | B2 A2 | d/e/d/c/ B B | G G E3/2 B/ | c B/A/ G/F/G/A/ | 
 A2 G2 :|  