There’s simply no orchestral sound quite like it. The Royal Concertgebouw Orchestra had barely done a bar of Bedřich Smetana’s overture to The Bartered Bride before I found myself grinning like a fool. It was as if I had stepped off a plane and walked into a bath of fresh foreign sun. The biting cold of winter had temporarily lifted for those who had made it to the Barbican this weekend. Spring had come early.