Advanced filter functionality / Drag'n'Drop the universe

I think the following changes would increase Songbird's usability. Given that I'm totally no developer, I'm sharing my Ideas here, hoping someone could find them useful.
Some Use Cases:
1. The Display Pane as to date shows three tags "track", "artist" and "album"

1.1.1 Alice drags the artist tag which contains $artist and drops it over the Service Pane. A new smart playlist node appears which points to a smart playlist filtered by artist with $artist.
1.1.2 Bob drags the album tag to the service pane and gets a new smart playlist, that filters his library by $album.
1.1.3 track tag similar

1.2.1 Alice drags the artist tag which contains $artist and drops it over the media list. The main pane now shows Alice's respective playlist (library) filtered by artist with $artist.
1.2.2 similar with album
1.2.3 similar with album

1.3 Alice gets the same behavior if she ctrl-clicks any tag in the Service Pane.

2. The media list shows n songs with each m tags.

2.1 Alice drags m5 of n42 and drops it over the Service Pane. That results in a smart playlist as in 1.1
2.3 Alice ctrl-clicks m5 of n42 and gets a filtered playlist as in 1.3

Do you have even more Ideas? Get them coming.
Hope I have made myself understandable even if my English isn't that good.