Unknown bird song

Hi,

I live in West End, Brisbane and I heard this beautiful bird song first thing in the morning. I made the best recording that I could on my phone and I've really no one to ask what type of bird this is. Maybe one of you can easily tell what kind of bird this is? 

https://youtu.be/STveBK8NTvc

It is the whistly sounding one in the background.

Thanks :)