How to sort on two column?

[ohrenkino]

See e.g. this thread:

Sort Intercade by more than one tad (column)

First click on the the column header of the subordinate sorting criterion and then on the column header of the top sorting criterion. Or: create a user defined column that has the two fields for sorting as contents.

or this one:

Sort by file name then by track number

I recently reinstalled my OS and software, now MP3Tag isn't working the way it used to. I am used to clicking on one column header, such as file name or artist, then clicking on a second column header--usually track number. This would, for example, sort everything by artist first, then arrange tracks by each artist in order while still maintaining the grouping of the first filter. It's worked like that for as long as I can remember. Now it's not working. When I click on my second column, I los…

In your case: first click on the column header for TRACK, then on the column header for ALBUM