When in artwork mode, could we have artwork thumbnail animated in some way, when it depicts multiple items?
Fe. in Albums Grouped by Artist view subsequent album covers could be displayed.
Or when grouping by Artist with Artist displayed, multiple artist images could be displayed.
The transition could be crossfade or maybe some kind of slide?
The animation would start after mouse pointer hovers over the artwork for some configured time.
This would be also an alternative to drilling down this item in order to see its full contents.