From the Royal Albert Hall, London. Presented by Petroc Trelawny. Mariss Jansons conducts the Royal Concertgebouw Orchestra in Sibelius's Symphony No 1. Sibelius stopped composing decades before his death. However, the seven symphonies he left place him securely among the greatest symphonists of the 20th century. Royal Concertgebouw Orchestra Mariss Jansons (conductor) Sibelius: Symphony No 1 in E minor.