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Cassotto
A cassotto is a 'sound chamber' within some more expensive accordions that contains one or more reed blocks of the treble side of the instrument. The sound of a cassotto register is warmer, less sharp than that of a register with unenclosed reeds. Technology The cassotto enclosure works as a passive frequency filter, attenuating higher frequencies and reinforcing lower ones (resonance). Instruments with cassotto have a sound quality distinctly different from instruments without. Usually only some reed blocks are placed in the cassotto enclosure, typically for low reed sets 16' and/or 8'. The remaining treble reed blocks are mounted straight. The firm Öllerer built a diatonic instrument with cassotto without register switches and two 8' (M) reed sets. Making a cassotto for diatonic instruments is quite more difficult due to the different reed plate arrangement. For chromatic accordions, a cassotto does not perform equally in every tone. On piano keyboards, the reed plates for b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accordion
Accordions (from 19th-century German ''Akkordeon'', from ''Akkord''—"musical chord, concord of sounds") are a family of box-shaped musical instruments of the bellows-driven free-reed aerophone type (producing sound as air flows past a reed in a frame), colloquially referred to as a squeezebox. A person who plays the accordion is called an accordionist. The concertina , harmoneon and bandoneón are related. The harmonium and American reed organ are in the same family, but are typically larger than an accordion and sit on a surface or the floor. The accordion is played by compressing or expanding the bellows while pressing buttons or keys, causing ''pallets'' to open, which allow air to flow across strips of brass or steel, called '' reeds''. These vibrate to produce sound inside the body. Valves on opposing reeds of each note are used to make the instrument's reeds sound louder without air leaking from each reed block.For the accordion's place among the families of musical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resonance
Resonance describes the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillating force is applied at a resonant frequency of a dynamic system, the system will oscillate at a higher amplitude than when the same force is applied at other, non-resonant frequencies. Frequencies at which the response amplitude is a relative maximum are also known as resonant frequencies or resonance frequencies of the system. Small periodic forces that are near a resonant frequency of the system have the ability to produce large amplitude oscillations in the system due to the storage of vibrational energy. Resonance phenomena occur with all types of vibrations or waves: there is mechanical resonance, orbital resonance, acoustic resonance, electromagnetic resonance, nuclear magnetic resonance (NMR), electron spin resonance (ESR) and reso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bugari (accordion)
Bugari ( fa, بوگري, also Romanized as Būgarī) is a village in Qaleh Tall Rural District, in the Central District of Bagh-e Malek County Bagh-e Malek County ( fa, شهرستان باغملک) is in Khuzestan province, Iran. The capital of the county is Bagh-e Malek Bagh-e Malek ( fa, باغملک; also Romanized as Bāgh-e Malek, Bagh-i-Malik, and Bagh Malek) is a city ..., Khuzestan Province, Iran. At the 2006 census, its population was 375, in 63 families. References Populated places in Bagh-e Malek County {{BaghMalek-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hohner
Hohner Musikinstrumente GmbH & Co. KG is a German manufacturer of musical instruments, founded in 1857 by Matthias Hohner (1833–1902). The roots of the Hohner firm are in Trossingen, Baden-Württemberg. Since its foundation, and though known for its harmonicas, Hohner has manufactured a wide range of instruments, such as kazoos, accordions, recorder flutes, melodicas, banjos, electric, acoustic, resonator and classical guitars, basses, mandolins and ukuleles (under the brand name ''Lanikai'') From the 1940s through 1990s, the company also manufactured various electric/electronic keyboards. Especially in the 1960s and 1990s, they manufactured a range of innovative and popular electromechanical keyboard instruments; the cembalet, pianet, basset, guitaret, and clavinet. In the 1980s, several Casio synthesizers (such as the Casio HT-3000/Hohner KS61midi and the VZ-1/HS-2) were sold under the Hohner brand. Nowadays, Hohner produces harmonicas, melodicas, accordions and record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klingenthal
Klingenthal is a town in the Vogtland region, in Saxony, south-eastern Germany. It is situated directly on the border with the Czech Republic opposite the Czech town of Kraslice, 29 km southeast of Plauen, and 33 km northwest of Karlovy Vary. The Aschberg ("cinder mountain") towers above the town at 936 m. The extremely elongated town, 10.5 km from end to end, is surrounded by numerous woods of firs. The town is bisected by the Döbra and Zwota rivers. These two rivers unite at the Czech-German border to form the Svatava river, which in turn flows into the Ohře river at Sokolov. History In 1591, Sebastian Köppel established a hammer mill near the border to Bohemia on the banks of the Zwota in order to capitalize on the rich deposits of iron ore and the region's vast supplies of wood, both for building and charcoal production. On 1 February 1602, there was the first documented mention of the "Höllhammer" (in English approximately: "Hell Hammer" or " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VEB Klingenthaler Harmonikawerke
VEB Klingenthaler Harmonikawerke (KHW) was a state-owned company based in Klingenthal, Saxony, and was the main producer of accordions, harmonicas, and electronic instruments in East Germany. History VEB Klingenthaler Harmonikawerke was established on 1 January 1949 through the consolidation of several private enterprises (F. A. Rauner, for example). 125,578 accordions were produced there in 1961 alone, which were exported to more than 40 countries. In 1964 VEB Vermona was incorporated into Klingenthaler Harmonikawerke. In 1972 a further 17 companies with state holdings were converted into state-owned companies and incorporated into VEB Klingenthaler Harmonikawerke (for example F. A. Böhm). The production and development of electronic instruments and effects pedals occurred in the factory at Schöneck, where the VERMONA logo first appeared on the ET-6 organ in 1972. In 1985 more than 3,000 people worked in the various sections. In 1990 VEB Klingenthaler Harmonikawerke was broken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overtones
An overtone is any resonant frequency above the fundamental frequency of a sound. (An overtone may or may not be a harmonic) In other words, overtones are all pitches higher than the lowest pitch within an individual sound; the fundamental is the lowest pitch. While the fundamental is usually heard most prominently, overtones are actually present in any pitch except a true sine wave. The relative volume or amplitude of various overtone partials is one of the key identifying features of timbre, or the individual characteristic of a sound. Using the model of Fourier analysis, the fundamental and the overtones together are called partials. Harmonics, or more precisely, harmonic partials, are partials whose frequencies are numerical integer multiples of the fundamental (including the fundamental, which is 1 times itself). These overlapping terms are variously used when discussing the acoustic behavior of musical instruments. Alexander J. Ellis (translating Hermann von Helmholtz) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequencies
Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as ''temporal frequency'' for clarity, and is distinct from ''angular frequency''. Frequency is measured in hertz (Hz) which is equal to one event per second. The period is the interval of time between events, so the period is the reciprocal of the frequency. For example, if a heart beats at a frequency of 120 times a minute (2 hertz), the period, —the interval at which the beats repeat—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light. Definitions and units For cyclical phenomena such as oscillations, waves, or for examples of simple harmonic motion, the term ''frequency'' is defined as the number of cycles or vibrations per unit of time. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
