Ah, ok, so instead of the dash I have slash symbol.
![](https://i.imgur.com/xrCCN6s.jpg)
So I replaced the dash in the formula you wrote above. It works, thanks!
- I do the main grouping by "Date added (album)" as usual
- Then I sub-group by Virtual1 tag.
Would it also be possible to do the main grouping using the the virtual tag? And then perhaps have it be sth like yyyy/mm (or mm/yyyy) instead of just mm.
Thanks a bunch!
Also, sth funny happens which is independent of the virtual tag which I haven't noticed before: if I do the main grouping by date added, and it generates the automatic groups of "last 7 days", "last month", etc., then when I arrive at the "last year", there are quite a few albums which actually belong to this year but still get grouped under last year main heading. See for instance here:
![](https://i.imgur.com/ECSg2oO.jpg)
the album Nimbus was added Feb 5, however, it gets grouped under last year. Nevertheless, it still receives the 02 [February] for the sub-grouping... Strange!
edit: apparently, albums added this year appear fine, but once last year starts the sub-grouping doesn't work that well. See e.g. here
![](https://i.imgur.com/iKUwR9N.jpg)
This happens multiple times...