Rick's idea is good, but here's a magic node that comes even closer to what Zebulon is asking for:

Track by playlist\<title|trim:1>\<title>\<playlist>

In this way under each track you have the playlists it belongs to (only tracks which belong to at least one playlist are shown). The big gotcha is that, as Rick pointed out, autoplaylists are ignored. The small gotcha is that tracks with the same title are treated as the same.

I could see the usefulness of your request. I don't know of any way to do it in MM natively but I decided to play around with Magic Nodes to see if it can do it. On the examples page for Magic Nodes they list an example of showing playlists by artist. The example worked perfectly for what I believe you want to do. If you don't have the Magic Nodes script you can get it from the Add-ons|Scripts section of the MM website. After you setup Magic Nodes then just add the following node:

"Playlist by artist|icon:bottom level|child of:playlists\<playlist><artist>"

Without the quotes of course. The only gotcha is that this only works for regular playlists. It will not scan auto playlists.

Hope this helps.

I have a lot of playlists and I often forget if I've added a particular song to a playlist. I wish there was an option to search the playlists so that I don't have to browse through all of them to see if the song is added.

Is there anyone else who would like to have this option?