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:2/4
K:F
['ccdd ccA z']  
X:1
L:1/8
M:2/4
K:F
 ccdd | ccA z | ccdd | ccA z | ccdd | ccA z | ccdd | ccA z | ccdd | ccA z | ccdd | ccA z | ccdd | 
 ccA z | ccdd | ccA z | c2 B2 | A4 |]  