Custom form to search only within a custom taxnomy?

Is it possible to create a custom search form with Relevanssi that only searches for terms within a certain taxonomy. For example, I have a taxonomy called “artists” with various names within (Jane Doe, John Doe, etc.). I need a form that only searches and returns those terms.

I know how to limit a form to a post type but even to posts within a certain category, but not how to limit it to a taxonomy and terms itself.