macOS reporting disk usage as system improperly

[dictoresno]

As you can see, it shows 200+ GB as "system" where about 115GB should be music and some videos. Music isn't showing up as any of the other sections. Is there a way to get macOS to properly read the information accurately?

This new Mac was cloned using migration assistant and the previous Mac read it just fine.

 

[dictoresno]

It now changed from "system" to documents. When I go to manage, it files music and movies in the documents section.

Do music files need to be in a specific iTunes folder to be considered music and not just a document file or is this just how sierra views music files now and doesn't differentiate