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:4/4
K:C
['GG GF', 'c3 G']  
X:1
L:1/8
M:4/4
K:C
 E/F/ | GG GF GE C>c | cBGE F2 E>F | GG GF GA BG | Gc cc c3 :: G | Gf ed cB GF | Gf ed c3 G | 
 cc cB c>d ec | BG FE F2 E>F | GG GF GABG | Gc cc c3 :|  