Hi Hugh, thanks so much — really glad you enjoyed it!
The current soundtrack is licensed CC-BY stock music (credited in the game), so original music is definitely something I think about for the future. Right now I'm deep in balancing and content for the beta, so I'm not ready to take on audio changes just yet — but I really appreciate the offer, and I've bookmarked your site (nice work on Never Second In Rome, by the way).
I'll keep you in mind when the game gets closer to a proper release. Thanks again for playing and for reaching out!