At first glance, the organ and the horn do not have much in common, but both instruments are particularly suited to making music sing, so to speak. Jean-Baptiste Dupont, organist at the Bordeaux Cathedral, and Stefan Dohr, principal horn of the Berliner Philharmoniker, demonstrate that, for example, in Sergei Rachmaninov’s lovely Vocalise. Naturally, the guest from France also introduces himself as a solo artist, presenting works such as Igor Stravinsky’s celebrated Three Movements from Petrushka, which is notorious for its technical difficulties.