You can sort playlists by column headings, but if you go to Your Music > Artists and view the list of songs in your library, you can't sort by column there (title, album, etc.)
Please add this simple feature.
I've hit the 10k limit and know I have duplicate songs by the same artist (just on different albums) and I'm using that as a way to clean up my library.
Right now I have to add the music to a playlist to sort it that way. Extra steps and time consuming.
Updated on 2019-08-07
Your idea was submitted a while ago and unfortunately didn't receive the amount of kudos needed to stay active in the ideas board (100 Kudos per year).
In order to keep the Ideas Exchange clearer I'll close this idea for now, but this doesn't mean Spotify rejected this idea.
If you think this is an idea which needs to be implemented, you're welcome to post it in a slightly different form :)
Have a nice day!