Classical music came to Iceland comparatively late, with the first Iceland composers working in the western, classical tradition emerging in the late 19th century and the early 20th century. Among them was Sveinbjörn Sveinbjörnsson, who is considered to have been the first Icelandic professional composer. Among his contributions to Icelandic music is the national anthem, Lofsöngur. Belonging to this first generation of Icelandic composers were Sigvaldi Kaldalóns and Sigfús Einarsson, and Emil Thoroddsen, best known for their songs with piano accompaniment. The most significant Icelandic composer in the first half of the 20th century was Jón Leifs.