How nice would it be if you are in the window of a specific artist and you know the name of a song: No matter if there are albums, singles, compilations and so on. If you fill in one letter - for example an a - then songs with other letters disappear. If you fill in another c and yet another c again, so you have 'acc'. With the artist Jubei probably the only song that would not disappear is "accidental note". This system would greatly advance the way you could search for a song in the database of a specific artist. Some lists in the windows of artists have become so long you need to search for specific song a very long time.
Because people can not be sure right now if they will like the genre of music they will hear when they push the play button they probably push it less. Maybe some people even compare the added music as spam if they do not know what it is.