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:2/2
K:G
['c2 Bc d2']  
X:1
L:1/8
M:2/2
K:G
"^AABB""^A" D |"G" BcdB"C" c2 (3cdc |"G" BcdB"D7" A2 D2 |"G" BcdB"C" c2 Bc |"D7" d2 D2"G" G2 :: 
"^B" A2 |"G" B2 G2"C" c3 A |"G" B2"D7" G2 A3 A |"G" BcdB"C" c2 Bc |"D7" d2 D2"G" G2 :|  