wmp app ... filtering song menu question

Hi All,

I'm developing a media player using WMP activex control. The idea here is to integrate the media library into an ipod-style menu filtering system, within this .NET GUI app i'm building.

So, the user would see a large list box with a list of songs and be able to filter it in a hierarchy.

example:

audio -> playlists -> (list all playlists here) -> (songs in the specific playlist here)
audio -> artists -> (list all artists here) -> (all songs specific to that artist here)
etc.

Any ideas on how to save the state of the previous list So, the user can go back to from all songs in a specific playlist, back to the list of playlists available.

I'm thinking the best way to do this is using a stack method ... but if there are any better solutions, i'd much appreciate your advice!

Is there anything inherent to windows media technologies that would allow me to do this

Thanks!