Music Theory and Alternate Dimensions

Well as you can see from the title this one's going to be kinda weird.

I have been poking around with this idea lately. It's more of a concept that I want to use in a story.

As you guys may know I'm also an amateur writer on type of being a songwriter. The reason I post about my writing in this music blog is simply due to the fact the entire concept revolves around music.

Basically the main character in the story is rather special, he can walk through songs as if they were a place.

It's a plane of existence where sound is a location, and he has the ability to go there and experience music like nobody else has. 

Basically this character is able to listen to a song in headphones close his eyes and be transported into the song. As he walks around inside the song's dimension he can interact with the different musical parts in the songs. 

I've been playing around with this idea for about a year, and even though I generally write horror, I would love to try this out if only in a short story.

What do you guys think? Worth a shot or a complete rubbish idea that I should throw away for all time?