LG CineBeam Laser 4K Owner's Manual page 88

Using the Music Player
The music player lets you choose music from other apps and use it as background
music.
You can play music from the selected storage device.
1
You can set repeat playback and random playback.
2
The configurable items differ depending upon model.
3
: You can turn the screen off while listening to music or display the
music player in full-screen mode.
: You can listen to music with the screen turned off.
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