first I like to say sorry in case this has been asked already. Due to my research I couldn't find anything close however.
"What are you talking about?", you ask?
Well. Look at New Vegas. So many mods, something for everyone! Also, quite a few mods make the strip better. But it is all visual. So if you have other (sometimes weird) mods floating around, why not something interesting and customizable? I'm talking about the background music of the strip of course! You already have new radio stations and replacer mods for the main one, so why not this? However, the way I get it, it's a different set of audio, or even a unique station. I'm not sure on the details, but I wonder about the following:
Is there a mod that already let's you replace the music on the strip only? If not, is there there a manual workaround (like replacing music in the sound folder)? Also, will the music be "positional", or would external edits be required to make it sound good? Talking about effects like slight "reverb" and so on.
Otherwise, if all else fails: Would some modder create a mod like this? I think this should be made unless already present, because it offers you even more customization. You could in theory, with an easy to use mod, create your own new theme on the strip. From 50's to RNB, to Rock, to Techno...anything! As I said...if you replace the strip visually, may as well do with the sound too.
Thanks for your time in answering these, and / or looking into that matter.