Around the world in 60 minutes: Thomas Trotter takes a ride on a high speed train this lunchtime, and you’re invited too. Naturally the starting point is Bach, but this colourful programme will take you from Percy Whitlock’s rural England to the great churches of Saint-Saëns’ Paris, by way of the low countries, and Isaac Van Vleck Flagler’s gloriously over-the-top trip down to the Swanee River. There’s a surprise round every corner.