Play different audio on google nest and phone

[mhmed]

I am running into an issue that started a few months ago. Here is the scenario.

One user in my house asks google to play some music on our Google home speaker. We have youtube music as our provider - and the song starts playing.  In another room, I want to listen to a song on my phone --I open youtube music and it shows that I am 'casting' the song that is playing on the google home. I want to play a different song on my phone but I dont know how to.  If I stop "casting" then the song that was playing on the google home is now playing on my phone -- and the google home is paused.

What do I need to do to set my phone to ignore what is happening on the goole home and allow me to play something on youtube music while the other user can hear their song on the google home?

[GBD]

The way I understand it is, if you want to be able to stream different music to multiple devices at the same time, you'll have to upgrade your YouTube Premium or YouTube Music Premium (Whichever one you have) to a Family account. After upgrading, you'll then need to then to go to https://myaccount.google.com/ to setup your family group and send invites out to them. 

[mhmed]

Thank you for your answer. -- I have to admit, though -- if there is no other way, that is quite annoying. I already pay for a monthly subscription to you tube red -- and all I want is to just play something on my phone without it stopping the stream on my google home. -- I much prefer the way it was before - when the only way to connect to the google home was when I opened the home app on my phone and then connected to one of my google devices. Now that the process has been "upgraded" and auto connects to my google home - it just makes it so cumbersome to just listen to something on my phone - without interrupting what's on the google home ( even when I am on the road). There should be a setting in the home app to not connect to other devices automatically.  -- If someone knows how to configure this -- please let me know.