Concert will begin at 19:30 hours GMT
Ehnes and Armstrong play Beethoven in London
James Ehnes, violin, and Andrew Armstrong, piano, play:
Violin Sonata No. 1 in D Op. 12 No. 1.
Violin Sonata No. 2 in A Op. 12 No. 2.
Violin Sonata No. 4 in A minor Op. 23.
Violin Sonata No. 3 in E flat Op. 12 No. 3.
In this opening instalment they perform the first four examples (1797-1800), the Op. 12 set dedicated to Beethoven's teacher Antonio Salieri, the single sonata Op. 23 to his patron Count Moritz von Fries, dedicatee of several important works including the Seventh Symphony.