I have no idea what that has to do with music but I would imagine they would have to write lots of good posts and interact with the Steemit community for a long time before their posts would get that many upvotes. In other words, they would have to work hard at it.

I know one thing though. They don't get 500 upvotes by asking people to upvote them or follow them or leaving comments like yours that have nothing to do with this conversation.

Read this about Steemit ettiquette and it may help you understand how to interact on this platform