It doesn't seem to happen all the time, but when I download a playlist from the forums, the songs on that playlist sometimes do not appear in the main song list; this is an issue because I'd like to add those songs to other playlist, and it comes as a surprise when I try to create a new song, and am told that the song already exists, so then I have to search through all the playlists. It seems to happen most with the Jazz 1350 playlist.

My questions:
1. Is there a way to get the songs from downloaded playlists to appear on the primary song list? (Under "Songs")
2. If not, what dictates which songs can appear on the main song playlist, vs. which songs can only be on the downloaded playlists?

Thank you!