Today Tom Service talks to superstar violinist and conductor, André Rieu about his passion for sharing the joy of music across the world with his Johann Strauss Orchestra. Tom also visits the Russian pianist Pavel Kolesnikov, now a resident of London, whose recordings of Chopin and Bach have earned widespread acclaim. Bach's Goldberg Variations also feature in a radical new reworking, which has been occupying the pianist and composer Xenia Pestova Bennett. She tells Tom more about Gold.Berg.Werk.