A clapper stick (also clap-stick or split stick rattle) is a traditional idiophone common among the indigenous peoples of California. It is traditionally constructed by cutting the branch of an elderberry tree, hollowing it out, and partially splitting the branch in two. It is used to keep time and accompany singers and dancers. Many are now made of bamboo, which do not require hollowing.[1][2][3]
^De Angulo, Jaime; Garland, Peter (1988). Jaime de Angulo : the music of the Indians of Northern California. Santa Fe: Soundings Press. ISBN978-9999517324.
^Barrett, Samuel A.; Gifford, Edward W. (1990). Indian Life of the Yosemite Region: Miwok Material Culture. Yosemite Association, Yosemite National Park, CA. p. 249. ISBN9780939666126.