Q: Apple Music on Apple TV?

Hi Guys,  I have recently subscribed to Apple Music - it works fine on my iphone/ipad  but I can't see how I play Apple Music through my Apple TV's (2nd gen)    I subscribe to Apple Match £22.00 a year!)  So I can play 'my music' on all devices inc TV,  but i cannot see how to play Apple Music through the Apple TV's  -

Any advice greatly appreciated!

Simon