Preface. General Introduction. 1. Pungnyu-bang music and Gagok. -- 2. Gagok, Gasa, and Sijo. Formation and transmission process of Gagok. 1. Formation of Daeyeop-related pieces. -- 2. Formation of Jungdaeyeop and Sakdaeyeop. -- 3. Nineteenth-century Gagok -- the formation of todaํys Gagok. -- 4. Master musicians of Gagok in history. -- 5. Poetry anthologies and collections of old notation books. Music and performance practice of Gagok. 1. Structure of Gagok. -- 2. Rhythmic cycles of Gagok. -- 3. Gagok modes. -- 4. Gagok vocal style. -- 5. Performance style of Gagok. -- 6. Expressions of Gagok. Musical characteristics of individual pieces and lyrics. 1. Namchang Gagok (male voice). -- 2. Yeochang Gagok (female voice). The music-cultural value of Gagok. References

1. Song cycles
2. Criticism