Sorting by last name does work surprisingly well, but I support the original request. I’d like a file tag that I could put in an arbitrary string that’s used for sorting. I wish foobar2000 had that capability.
Thanks John_V, this is exactly what I want. I use mp3tag and I will have a look if this tag can also set with it. Hopefully Roon will support this in the future.
Here’s what I’ve done. I’ve selected sort by last name. Then I edited some entries based on last name. So Pat Metheny becomes Metheny, Pat. Then Pat Metheny Group becomes Metheny Group, Pat. If you look at the edit options for artists you’ll see an option for Last-First Sort Name. Simply edit that entry as necessary. This way you’ll have Pat Metheny, Pat Metheny Group, Pat Metheny Trio, and Pat Metheny Unity Group all together, which is what I think you’re after.