You would expect a shuffled deck of 52 unique cards. Not a deck of three 5 of spades. Likewise with a playlist: if I shuffle a playlist of 52 songs, I want thos

You would expect a shuffled deck of 52 unique cards. Not a deck of three 5 of spades. Likewise with a playlist: if I shuffle a playlist of 52 songs, I want those 52 songs to be played in a random order. Not for a random song to be played each time but a random shuffle of that list.