I arranged this. Go me. The BBC Micro doesn't have the sound capabilities of the Commodore 64, and there are some serious limitations in terms of tempo and pitch range. (That's why this is a bit too fast.) Nevertheless, it is at least recognisable, so I'm going to inflict it on you. Fillies and gentlecolts, the BronyBeeb version of "Apples to the Core" is right here: