I was there, Tony. If you happened to be looking in my direction, I was third from the end of the front row, violin end. I didn't see who was interviewed in the Arena in the interval, and whether there was a balance of interviewees between regulars and occasionals (I do hope so).
I agree the Prokofiev was high-quality, and the Martinu was well-played too. I'm afraid the BBCSO made a bit of a hash of the Sea Interludes though - ensemble all over the place. It didn't help, of course, that some prat up in one of the boxes was talking through the whole thing