We have the idea to use libreelec also for music. But at moment, it seems that the management of the Audio rooting seems not realy working as needed.
At first It seems not possible to deactivate the internal audio-output. If your device hasa speaker you have to be afraid that it will be used (workaround: set vollume to 0). The other Point is, that you could not setup a bluetooth device as primary output, so that the device switch automatically if one is connected. e.g. If I connect a bluetooth speaker - to listen music on the balconi - you have to change the settings manually.
