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:C
['d2 d2', 'd4 d_edc BA G2 cdcB AG F2']  
X:1
L:1/8
M:2/2
K:C
 G2 d2 d2 c2 | B4 A4 | G3 A Bc d2 | d2 ^c2 d4 :: d_edc BA G2 | cdcB AG F2 | ABcd B2 cB |1 
 AG ^F2 G4 :|2 !fermata!G4 |]  