Þjóðlag is a traditional form of Icelandic folk music that often features simple melodies and lyrics. It is typically performed in a group setting, with singers harmonizing to create a rich sound. The themes of Þjóðlag often revolve around everyday life, nature, and historical events, reflecting the culture and heritage of the Icelandic people. This genre is closely associated with the Icelandic Sagas and has been passed down through generations. Instruments like the langspil and guitar may accompany the singing, enhancing the overall experience. Þjóðlag plays a significant role in preserving Iceland's cultural identity and is celebrated at various festivals.