When you stream music it will play to the Beam and to the surrounds. There’s no need to reconfigure anything.
There is a Full/Ambient setting for the surrounds: set it to Full. You can also change the volume of the surrounds relative to the Beam ( for tv as well as for music).
You can also use the Group feature to sync the music with your Roam and any other speakers you have in other rooms.
Thank you for your answer
Can you please tell me where this setting is located
I can't adjust the volumes separately in this configuration, can you tell me how to do it?
Thank you very much
Settings/System/<roomname>/Surround Audio where <roomname> is whatever label you’ve given to the speakers’ location (Lounge, TV Room, etc).