To prevent artists from repeating too close together, you need to create a Track/Artist Separation Playout Policy. This ensures that tracks by the same artist are separated by a minimum time period that you specify.

First, navigate to the Manage Playout Policies window and click Add New. Select Track/Artist Separation Playout Policy from the options. In the policy settings, set the Artist separation time using the up and down arrows to specify the minimum number of hours or minutes that should pass before an artist is played again. You can choose between hours and minutes using the dropdown menu. For example, you might set this to 2 hours for songs to ensure sufficient variety in your playlist. You can also apply the policy to specific track groups by checking the Apply to specific track groups checkbox if you only want the separation rules to apply to certain types of content like songs rather than jingles.