Last night's Proms concert with the Budapest Festival Orchestra was ravishing, but raised an uncomfortable question I have a friend who travels to Budapest annually specially to hear the Budapest Festival Orchestra and conductor Iván Fischer. I always thought it was a little obsessional, but after last night’s BBC Proms concert, I understand why. What I listened to was possibly the finest orchestral playing I’ve ever heard. They played two Brahms symphonies – nos. 3 and 4 – w