To correct some little "fake news": I did not do the soundtrack. But the speccy-version of agd has a tool to insert pt3 music. And the speccy version of Pink Pills plays some tunes. So I'm helping Sebastian to modify AGD to play his tunes on CPC.
I'm working on a more generic approach for agd-users to put a loading screen and some pt3-tunes into their games. Perhaps someone is interested....