Sonata 1. X. 1905, also known as Janáček's Sonata, is a two-movement (originally three-movement) piano composition which Leo Janáček composed in 1905. This sonata was originally entitled "From the Street". Janáček intended this composition as a tribute to a worker who, on the date indicated by the title, had been bayoneted during political demonstrations in Brno, Czech Republic. The inscription on the piece reads, "The white marble of the steps of the Besední dům in Brno. The ordinary labourer Frantiek Pavlík falls, stained with blood. He came mere to champion higher learning and has been slain by cruel murderers".