Thanks for your reply. I was aware of that method, but what I'm a looking for is a 4 column pane view with no horizontal window. So 4 panes: genre, artist, album, tracks. I want this arrangement because my artists, album, and track lists tend to be quite long and 4 columns is, i find, a much better use of screen real estate than columns + plus 1 row. I have attached a screenshot of this method in Itunes.
Thanks.