when I last saw a Tchaichovsky concert, the society were there for effect, they are napoleonic era re-enactors and their cannon for the 1812 was very loud and unexpected but very effective and atmospheric!!
You're very welcome jura! Yes, drum man was going for it wasn't he! My tube journey home was great, the entire carriage was buzzing, and there were prommers on my train home too raving about how great it had been. Thursday (my last one this season) will have to be very very good to beat it.