The situation is pretty common: you’re listening to music in the kitchen and then you move to the living room. There was no easy way to simply move the streaming music from the kitchen speaker to the living room speaker without interruption. It required switching the cast device manually on your phone or a convoluted string of voice commands.
Now, you can say “OK Google, move the music to the living room speaker” and it will do exactly that.
Starting today, Google is finally making it possible to "move" music between Google Home speakers and casting devices in your home.