I think you may need to have an MP3 version of your program for exporting to HTML5, I have yet to try this myself but would be interested to find out if that solves your problem. I did come across this when setting up music:
Quote: "The old music commands have been deprecated in favour of the new OGG music commands (except on HTML5). The new commands require files compressed with OGG Vorbis, but will work on all platforms, support multiple music files playing at the same time, and allow seamless looping.
On HTML5 the old music commands have better performance than the newer commands."
source: https://www.appgamekit.com/documentation/Reference/Music.htm
Edit - This looks really cool! I can hear radio chatting about something, are those WAV files or is that the OGG playing? I'm using Chrome on Windows.