Q:Information: - Clapsticks or clappers are a type of drumstick , percussion mallet or claves that serve to maintain rhythm in Aboriginal voice chants . Unlike drumsticks , which are generally used to strike a drum , clapsticks are intended for striking one stick on another . As an ancestral instrument that may traditionally accompany the didgeridoo , it is sometimes referred to as musicstick or just Stick . In the language of the Yolngu Aborigines of Northeast Arnhem Land , in Australia these clapsticks are called bimli . - A drumstick is a type of percussion mallet used particularly for playing snare drum, drum kit and some other percussion instruments, and particularly for playing unpitched percussion. - Rosewood refers to any of a number of richly hued timbers, often brownish with darker veining but found in many different hues. - A percussion instrument is a musical instrument that is sounded by being struck or scraped by a beater (including attached or enclosed beaters or rattles); struck, scraped or rubbed by hand; or struck against another similar instrument. The percussion family is believed to include the oldest musical instruments, following the human voice. - A drumhead or drum skin is a membrane stretched over one or both of the open ends of a drum. The drumhead is struck with sticks, mallets, or hands, so that it vibrates and the sound resonates through the drum. - A percussion mallet or beater is an object used to strike or beat a percussion instrument in order to produce its sound. - In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a transmission medium such as air or water. In physiology and psychology, sound is the "reception" of such waves and their "perception" by the brain. Humans can hear sound waves with frequencies between about 20Hz and 20kHz. Sound above 20kHz is ultrasound and below 20Hz is infrasound. Other animals have different hearing ranges. - Claves (Anglicized pronunciation: ) are a percussion instrument (idiophone), consisting of a pair of short (about , thick dowels. Traditionally they are made of wood, typically rosewood, ebony or grenadilla. In modern times they are also made of fibreglass or plastics. - A dowel is a solid cylindrical rod, usually made from wood, plastic, or metal. In its original manufactured form, a dowel is called a "dowel rod". Dowel rods are often cut into short lengths called "dowel pins". Dowels are employed in numerous, diverse applications including axles in toys, detents (e. g., in gymnastics grips), structural reinforcements in cabinet making, and supports for tiered wedding cakes. Other uses include: - The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. Drums consist of at least one membrane, called a drumhead or drum skin, that is stretched over a shell and struck, either directly with the player's hands, or with a drum stick, to produce sound. There is usually a "resonance head" on the underside of the drum, typically tuned to a slightly lower pitch than the top drumhead. Other techniques have been used to cause drums to make sound, such as the thumb roll. Drums are the world's oldest and most ubiquitous musical instruments, and the basic design has remained virtually unchanged for thousands of years. - Ebony is a dense black hardwood, most commonly yielded by several different species in the genus "Diospyros", which also contains the persimmons. Ebony is dense enough to sink in water. It is finely-textured and has a very smooth finish when polished, making it valuable as an ornamental wood. The word "ebony" derives from the Ancient Egyptian "hbny", via the Ancient Greek ("ebenos"), by way of Latin and Middle English Given the information, choose the subject and object entities that have the relation of 'subclass of'.
A:
clapstick , idiophone