Five programmes this week in which Michael Hall explores the changing sound of the recorded orchestra. In the fourth programme, he looks at the Czech Philharmonic and introduces recordings of the orchestra playing Dvorak, Smetana, Beethoven, Janecek and Suk conducted by Vaclav Talich , Rafael Kubelik ,
Paul Kletzki , Karel Ancerl ,
Vaclav Neumann and Libor Pesek.