I would be looking forward to have an extended search box where we could filter and order songs by style and date (of creation and last edition).
The existing recently edited and recently played playlists are very useful already, but it could be enhanced.
This could be helpful for example to quicky find all the charts that has been created few months or few years ago and most importantly, to quicky find the most recently updated version of a song when there are several copies in the library