And it seems the question was too trivial for our "Expression Professionals," so I'll take a stab at that too...
Generally, there's no way to get the same kind of summary statistics in a Panes View as is possible in a Categories View. But in this case, we don't need an average or a total—only the largest track numbers. That can be done with a smartlist that simply sorts the library in descending order of
Track # (
~sort=[Track #]-d) and then removes duplicates of
Album (~nodup=[Album]).
I've added that to the "Filters" pane of my main Panes View. That's a collection of
Search lists for such things as single/multiple artist, listened to recently/not, duplicates, etc. I'm not sure why I need it, but now I can select "Tracks/Album" to show a list of albums by number of tracks for any genre/style of music. My view is normally grouped by album, but that's easily changed by clicking on the
Track # header and selecting "Sort all files by Track # (removes grouping temporarily)." More importantly, the original grouping and sorting are automatically restored when done.
Now I leave it to our expression wizards provide a smartlist that goes beyond just reporting the largest track number. I'd like to be able to make any selection in my panes (e.g., "5-star blues-rock released in the 1970's") and see a list of albums with the number of tracks they have matching those criteria. My solution is to flag the selection (i.e., set [Flag]=1), then switch to a Category view (where a
Rule for file display is [Flag]=1) to see the summary statistics. It works, but I crave more elegance.