As I said, not Bach per se. Just Jesu Joy. And yes, I arranged it myself. Radio 3 are very interested - they want me for their "Great Works Ruined by Cretins" slot on Saturday mornings.
If you do ask Santa for a ukelele, ask him for some new strings as well - the ones that come with them are rubbish and frustratingly won't stay in tune. Changing them makes all the difference. And remember to specify the colour. Ds's is red, but the yellow ones are particularly fine.