Brassicas are cabbage type plants.(inc Cauliflower and Brocoli).
Roots are veg that grow underground (inc potato and carrots).
Others are anything that does not fit exactly into Roots or Brassica description.
Others would include Tomato, leek, onion, sweetcorn, squash, pea and lettuce.
Each section must to be rotated from year to year. You can't grow cabbage where cabbage grew the year before for fear of disease, the same goes for root veg. So in order to stop diseases and maintain soil balance we have to move around the three types of crop every year.
I have four sections to my allotment. What am I going to do with the foorth part? Roots Brassicas Other and.... Livestock? Sadly too many foxes (don't get me started). Roots, Brassicas Other and....fallow? That seems like a waste of land, besides in such a small area a bag of growmore organic fertilizer and some well directed horse muck will help the land recover better than a year left fallow.
The festival will probably just be me on a stool belting out classics on my acoustic guitar. If by classics your mean Love me tender, twikle twinkle little star and a painfully stilted version of Ode to Joy in C. Thanks to Jay (in yellow) for the Glasto photos.
I'd better go away and have a think about this.