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
['C2 G,2']  
X:1
L:1/8
M:4/4
K:C
 G,2 | C2 C2 C2 E2 | C2 G,2 B,2 G,2 | E2 C2 EDDB, | C4 z2 CD | E2 EEFEDC | D3 E D2 G,B, | 
 D2 DDEDCB, | C2 G,2 E,2 G,2 | E2 ECEDDB, | C4 z2 CD | E2 EEFEDC | D3 E D2 G,B, | D2 DDEDCB, | 
 C2 G,2 E,2 G,2 | E2 ECEDDB, | C4 z2 |]  