How do you make secondary keywords rank?

I'm wondering if you aim to gain traffic for secondary keywords ranking on the top page of Google.

How many mentions of that word do you have? And do you use things like adding an outside link to that anchor text?

I'll give you an example of what I'm trying to do.

Some of my articles rank #1-10 on Google. They're in the music niche with titles like "Artist Y's Albums."
In the article I'll have subheadings like "Album X" and then text a la "Album X by Artist Y is really good etc etc".

How do I get "Album X" to also rank on Google's top page and drive up traffic? I noticed that KW's like "Album X" have nearly as much volume as my main keyword.

As always, thankful for any and all insights. Cheers!

By creating a diversify content that address a variety of secondary keywords related to your primary topic as it help your content become a comprehensive resource on the subject