Writeup on our Github Repo:

https://github.com/MetaMelange/H4ckIT-CTF-2016/blob/master/StrangeSongs%20-%20Turkey/solution.md

Cheers
Team MetaMelange

Original writeup (https://github.com/MetaMelange/H4ckIT-CTF-2016/blob/master/StrangeSongs%20-%20Turkey/solution.md).