Where Words End: Music and the Natural World. Andris Nelsons leads this program featuring Tokyo-born rising star Mao Fujita as soloist in Mozart's popular Piano Concerto No. 21, which he composed in 1785. Finland's greatest composer, Jean Sibelius, infused his own music with Finnish musical and cultural traditions, even in his apparently abstract symphonies. Finnish composer Outi Tarkiainen, a native of Lapland near the Arctic Circle, composes music influenced by the region's distinctive landscape and culture. Her BSO co-commissioned Day Night Day employs two traditional Sámi melodies.