Sō u
Sō u sō of Laos and Thailand, with coconut body, wooden belly, long neck, and rear tuning pegs. A silk ligature below the pegs forms a nut, tying the strings to the neck. The sō u corresponds to the hu ch'in of China, the rāvanatta of India, the tro u of Cambodia. Also called sō o (47). Danielou, Alain. La Musique du Cambodge et du Laos. Pondicherry, 1957.