sorting inside of playlist

[Meliamarkt]

Hi,

Why not make it possible to sort songs in playlists so that you later can filter them out? This would be more effective with larger playlists. For example, I have a playlist with different sub-genres of rap. Sometimes I want to listen to all of the different sub-genres so I just have it on shuffle, but sometimes I only want a certain type of rap, for instance cloud rap. So, my idea is for you to add a feature where I can "flag" songs in my playlist and then filter in the playlist based what my mood is. This would be better than needing to que lots of songs/having many playlists.