Gugak is a traditional form of Korean music that encompasses a variety of genres, including vocal and instrumental styles. It often features unique instruments such as the gayageum, haegeum, and piri, which contribute to its distinct sound. Gugak is deeply rooted in Korean culture and history, often performed during festivals, ceremonies, and other cultural events. The music of gugak is characterized by its use of pentatonic scales and improvisation, reflecting the emotions and stories of the Korean people. It serves not only as entertainment but also as a means of preserving and expressing Korean heritage and identity.