If you’ve ever been curious about Sibelius, this program is a 90-minute primer on the great Finn’s entire career. Starting with the Symphony No. 1 (1898), when Sibelius was in thrall to romantics like Tchaikovsky, Vladimir Ashkenazy leads the National Symphony Orchestra through 1914’s brief Aallottaret (Oceanides), a quick example of the tone poems for which Sibelius is best-known, then concludes with the Symphony No. 7 (1924). The latter is a fascinating work; rather than the standard four movements, the Seventh moves through its themes organically, building on them as the piece progresses and returning to earlier motifs in a manner that’s quite thrilling. Ashkenazy’s touch with Sibelius is a further draw; as he’s done memorably with composers like Bartók and Rachmaninoff, Ashkenazy finds the sweet spot between romanticism and 20th-century experimentation. The National Symphony Orchestra performs at 8 p.m. at the Kennedy Center’s Concert Hall, 2700 F St. NW. $20–$80. (202) 467-4600.