Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
Q:3/8=112
M:6/8
K:G
['GDG B2 G c2 A BAG', 'd ece']  
X:1
L:1/8
Q:3/8=112
M:6/8
K:G
{DEF} GDG B2 G | c2 A BAG | FDF A2 F | A2 F D2 (3(D/E/F/) | GDG B2 G | c2 A BAG | EFG AGF | 
 G3 G3 :|{GABc} dBd g2 d | ece g2 e | dBd gdB | AAA A3{GABc} | dBd g2 d | ece g>fe | dcB AGF | 
 G3 G3 :|  