How to delete all songs related to a specific playlist?

Actually… didn’t you know this:

It’s still questionable “bug” or “feature”:

  • load a new track to player (which never have been stored to “My Collection”)
  • metadata (track analysis data) file will be created
  • don’t store the track to “My Collection”
  • don’t play the track
  • close the app
  • the metadata file is never deleted

2nd step:

  • add a new track to local playlist in the “My Collection”
  • delete the track from “My collection”
    => the metadata file is never deleted