Headlong into mystery

I think my big presentation went pretty well.  Insofar as bar charts can be interesting I tried to make it a bit different, and even humourously unusual here and there. It was a good 35 minutes of talking, and filling up the rest of the hour answering some questions. One of the attendees actually said to me afterwards, "You should be a professional speaker!!"  Little old me, eh?

I was all for not having a blip for today until I'd finished the washing up and noticed it was 21.12, a time etched into the consciousness of some music fans, so there was just time to grab my bass, jump around and tear up and down the neck for half an hour.