Sorry, it doesn't specify and also the one from emuparadise doesn't have music on the world map. (even before being patched) However, it does come with two .ape files which are named track 2 and track 3. I converted them to .mp3 files using SUPER and I am able to play them. Looking up a video with the world map music working, I can confirm that the track 2 song is the world map song. (The other could be credits, perhaps?) I don't know how to insert the tracks back into the image though.
If anyone happens to know how to insert audio tracks into a cd image, while preserving the rest of the data on the image, I would be pleased.
You could burn or just mount the image, then re-rip it to a different format.
The decompression of the downloaded archive is meant to be done with Pakkiso, though you can also do it manually. I don't know why the resulting format for the audio is "Bin". You can simply rename that to wav, and edit the cue file accordingly.
Edit: I just tested it with the particular image from EP, and it won't work. Normally I should be able to re-rip the mounted image, but that's not possible presumably because of the audio problems.