Using promoting and demoting can be used as a easy way to tun ethe shuffle function of a Juke Box,
For example if we like a song, we give thumbs up, if we don't we give a thumbs down.
Reaching a pre specified number of thumbs down could mark the song for deletion.
Also we could mark songs as damaged and substandard audio.
Also a option play more songs of this beat , tempo or mood could make the life easier for the listener.
Also Inbuilt DJ Software to tweak the songs could also make the same songs appear more appealing each time we play them.
Or say use AI DJ to tweak your regular songs mode.
Man what kind of people do billionaires hire,