Watched the Tattoo tonight on the ABC with my family and was spell bound by the "Top Secret Drum Corps" The only non military band to be allowed to perform at the Tattoo.
I think it was 2003 when they were first invited and have played about 4 times at the Tattoo????
They are from Switzerland and are from all sorts of backgrounds including bankers, tradesmen and so on.
http://www.abc.net.au/iview/#/view/29744