"The word cho, which appears in the names of such p'ansori singing modes as p'yong cho [sic], u cho, and kyemyon cho [sic], in corporates the sense of the Western musical concepts of mode and scale, in addition to the aesthetic effect of key. Each cho, moreover, is attributed to certain impressionistic qualities which rise from the singer's vocal techniques and state presence. The cho, therefore, is an arrangement of selected musical notes, usually five, which are used to create melodies. These selections and arrangement of these notes is said to impart characteristics to the melodies that are based on them, and, therefore, suggest affective distinctions among cho, as expressed in such impressionistic terms as "brave," "harmonious," or "poignant,"... The keymyon, mode... is said to evoke soft and sad feelings in the listener and, therefore, is commonly used to express melancholy and lament." (Heather A. Willoughby, "The Sound of Han: P'ansori, Timbre, and a South Korean Discourse of Soor and Lament", p.p 91-92)