I have a sleep scene for the children’s room, the light above is off, the fan is on speed to adjust to the independent temperature of movement in the room, the lamp is on and the night light is on. I also have HomePod mini play white noise, which is a playlist of the same white noise song many times. I noticed that occasionally this song will stop playing or change the volume throughout the night. Several times I asked Siri to play the white noise and it plays a continuous white noise track built into the HomePod. I’d like to change the scene to play the Apple Music track, but I don’t know how. May? Thanks for any help.