From WILL - Classics of the Phonograph -

String quartets of the early 20th century

In the early 20th century, the string quartet form was alive and well. Sibelius, who was famous for symphonies, wrote one entitled Intimate Voices, and Leon Janacek, famous for operas, wrote quartets with the titles, The Kreutzer Sonata, and Intimate Letters. We'll sample some of these quartets.