Leonard Elschenboich is joined by pianist Alexi Grynyuk for a program of Beethoven's five cello sonatas, which span his three creative periods. The audacious Op.5 sonatas date from his early years in Vienna as a piano virtuoso and aspiring composer (1792-99). The great Op.69 sonata is from the same period that saw the composition of Symphonies Nos.4-8, the Violin Concerto, Mass in C and the String Quartets Op.59. The two Op.102 sonatas are from the cusp of the 'late' period. This is the time of the Symphony No.9, the Missa Solemnis, the great string quartets Op.127-135 and the last five piano sonatas. The cello and piano are truly equal partners in all these works, and Beethoven exploited the full range of the cello - placing great demands on the player. The Op.17 sonata from the 1790s was composed for horn and piano. The transcription is believed to be by the composer, or at least approved by him.