Amarok/Archives/Alternative Playlist View
This playlist view has an additional benefit of taking up less space, as a separate column for the track's title is not needed. A third benefit is the ability to rate Albums rather than tracks. Again, this makes particular sense for classical music, where tracks (movements) are often just part of a composition and not stand alone works.
The album's tracklist is collapsible using the expand / collapse button - like in a filesystem's Tree view. Auto-expand would expand the album's tracklist when that album is being played.
Proposal is for Amarok 2.0, I welcome your comments..
1.1 - Album Cover added where there is enough room, as suggested by Mogger.