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Microtonality is the use in music of microtones — intervals smaller than a semitone, also called "microintervals".It may also be extended to include any music using intervals not found in the customary Western tuning of twelve equal intervals per octave.
Map of pre-Columbian cultures Poporo Quimbaya in the Gold Museum, Bogotá Colombia Seated gold figure from the Museo de América (Museum of America). Quimbaya artifacts refer to a range of primarily ceramic and gold objects surviving from the Quimbaya civilisation, one of many pre-Columbian cultures of Colombia inhabiting the Middle Cauca River valley and southern Antioquian region of modern ...
Rocker box exhibit at Dahlonega Gold Museum. A rocker box (also known as a cradle or a big box) is a gold mining implement for separating alluvial placer gold from sand and gravel which was used in placer mining in the 19th century. It consists of a high-sided box, which is open on one end and on top, [1] and was placed on rockers.
A chord chart or "chart" contains little or no melodic or voice-leading information at all, but provides basic harmonic information about the chord progression. Some chord charts also contain rhythmic information, indicated using slash notation for full beats and rhythmic notation for rhythms.
In fact, in the Lambayeque and Chimu cultures (750–1400 CE), a wide range of functional metal items were produced such as bowls, plates, drinking vessels, boxes, plates, models, scales and especially beakers (acquillas), but mostly for ceremonial or elite use. [15]
A semitone is thus made of two steps, and three steps make a three-quarter tone or neutral second, half of a minor third. The 8-TET scale is composed of three-quarter tones. Four steps make a whole tone. Quarter tones and intervals close to them also occur in a number of other equally tempered tuning systems.
This list contains musical instruments of symbolic or cultural importance within a nation, state, ethnicity, tribe or other group of people.. In some cases, national instruments remain in wide use within the nation (such as the Puerto Rican cuatro), but in others, their importance is primarily symbolic (such as the Welsh triple harp).
Tumbaga was widely used by the pre-Columbian cultures of Central and South America to make religious objects, as they considered gold a sacred metal. Like most gold alloys, tumbaga was versatile and could be cast, drawn, hammered, gilded, soldered, welded, plated, hardened, annealed, polished, engraved, embossed, and inlaid.