Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
M:6/8
K:G
['', 'GFG BcA', 'dBG gfg afd cBc def gdg fdf']  
X:1
L:1/8
M:6/8
K:G
 D |: GFG BcA | BGF GBc | dBG cAF | GDC B,CA, | GFG BcA | BAG fed | cAG FGA |1 BGF G2 D :|2 
 BGF GBd |: gfg afd | cBc dBG | gfg afd | cBc def | gdg fdf | ece gfe | ded cBA |1 (3BGF GBd :| |5 
 ||2 MB G F G2 ||  