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[Rafal Lukawiecki]

I've been reading up on the expression language, and I cannot quite figure out through the UI either. Having searched here and on computeraudiophile.com I am still unable to solve this very simple thing—I am sure it is awfully easy, many thanks for help.

I'd like to remove a single value of a genre tag (or any other tag that allows for multiple values separated with a semicolon) on a selection of tracks which share this value but otherwise have different other genres. When I multi-select the tracks the Tag Pane shows [Varies] and I cannot figure out how to create an expression to remove a single value, say "Rock" from all those tracks. Is there, perhaps, a menu option to do that?

Thanks from a very new user.

[Matt]

Genre isn't a list-style field, so you'll need to select files that have a consistent genre and remove the one checked genre from that.

If you search for [Genre]=[Rock] it might help.

[Rafal Lukawiecki]

Thanks, Matt. If genre is not a list, would it be just a string? If so, I suppose I could build a regex expression, unless there's another way.

[Rafal Lukawiecki]

I ended up using expression

Code: [Select]

=replace([Genre], oldtag, newtag)
to replace the incorrect genre tags. To delete an unwanted tag across multiple entries (with "Varies" showing) I ended up using expression

Code: [Select]

=replace([Genre], tagtoremove, )
and I didn't even need regex in this case.

[glynor]

I ended up using expression

You can do this.  There is a tool in the GUI for this as well, though.  Select the files, right-click and choose Library Tools > Find and Replace.