Focus: how to create "OR' lists of artists

@Ronnie, I recall that is the example that Meridian used so long ago…

Skip to the 1:34 mark-- https://www.youtube.com/watch?v=YOrxpgdovEM

In your above example you would have to make two bookmarks, one for the +Miles Davis and -John Coltrane and -Miles Davis and +John Coltrane. Which works, but what if you wanted list of albums created from each of those bookmarks?

I made a thread that is close to this topic of boolean statements (AND, OR, NOT) here Nested Bookmarks