stop pandora from adding to my playlist

[tom2]

I want to create playlists that are only the songs I want.  How can I get pandora to stop adding songs to my playlist?

[AdamPandora]

@tom2 If you create a customized playlist with a set list of tracks, then Pandora shouldn't add any additional songs to it.

What is the name of the playlist this is happening on?

I'd like to take a closer look.