castanets
A pair of small, shell-shaped wooden clappers held in the hand and clicked together rhythmically, closely associated with Spanish flamenco music and dance.
In Depth
Castanets (from Spanish "castañuelas," meaning little chestnuts) consist of two concave pieces of hardwood, traditionally connected by a string looped over the thumb or fingers. In flamenco, skilled performers use two pairs simultaneously — one in each hand — producing intricate rhythmic patterns that complement the guitar, singing, and dance. The higher-pitched pair is played with the right hand (hembra) and the lower with the left (macho).
Orchestral castanets are often mounted on a handle or board for easier playing, though this sacrifices some of the rhythmic subtlety of hand-held technique. Spanish composers like Albéniz, Granados, and de Falla incorporated castanets into orchestral scores. Bizet's Carmen uses them to evoke Spanish atmosphere. The instrument's association with Spain is so strong that its use in any musical context immediately conjures Iberian imagery, though similar clappers exist in many Mediterranean and Middle Eastern traditions.
Professional flamenco dancers can produce up to 16 distinct sounds per hand with castanets, executing rolls and accents at speeds that rival the fastest percussion instruments.