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Unpitched Percussion
An unpitched percussion instrument is a percussion instrument played in such a way as to produce sounds of indeterminate pitch, or an instrument normally played in this fashion. Unpitched percussion is typically used to maintain a rhythm or to provide accents, and its sounds are unrelated to the melody and harmony of the music. Within the orchestra unpitched percussion is termed auxiliary percussion, and this subsection of the percussion section includes all unpitched instruments of the orchestra however they are played, for example the pea whistle and siren. A common and typical example of an unpitched instrument is the snare drum, which is perceived as unpitched for three reasons: * The snares produce sounds similar to white noise, masking definite frequencies. * The drum heads produce inharmonic sounds. * The strongest frequencies that are present are unrelated to pitched sounds produced by other instruments in the ensemble. Although the drum is ''tuned'' by the playe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inharmonic
In music, inharmonicity is the degree to which the frequencies of overtones (also known as partials or partial tones) depart from whole multiples of the fundamental frequency ( harmonic series). Acoustically, a note perceived to have a single distinct pitch in fact contains a variety of additional overtones. Many percussion instruments, such as cymbals, tam-tams, and chimes, create complex and inharmonic sounds. Music harmony and intonation depends strongly on the harmonicity of tones. An ideal, homogeneous, infinitesimally thin or infinitely flexible string or column of air has exactly harmonic modes of vibration. In any real musical instrument, the resonant body that produces the music tone—typically a string, wire, or column of air—deviates from this ideal and has some small or large amount of inharmonicity. For instance, a very thick string behaves less as an ideal string and more like a cylinder (a tube of mass), which has natural resonances that are not whole numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell (instrument)
A bell is a struck idiophone, directly struck idiophone percussion instrument. Most bells have the shape of a hollow cup that when struck vibrates in a single strong strike tone, with its sides forming an efficient resonator. The strike may be made by an internal "clapper" or "uvula", an external hammer, or—in small bells—by a small loose sphere enclosed within the body of the bell (jingle bell). Bells are usually cast from bell metal (a type of bronze) for its resonant properties, but can also be made from other hard materials. This depends on the function. Some small bells such as ornamental bells or cowbells can be made from cast or pressed metal, glass or ceramic, but large bells such as a church, clock and tower bells are normally cast from bell metal. Bells intended to be heard over a wide area can range from a single bell hung in a turret or bell-gable, to a musical ensemble such as an English ring of bells, a carillon or a Russian Russian Orthodox bell ringing, zvon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitched Percussion
A pitched percussion instrument (also known as a melodic or tuned percussion instrument) is a percussion instrument used to produce musical notes of one or more pitches, as opposed to an unpitched percussion instrument which is used to produce sounds of indefinite pitch. Pitching of percussion instruments is achieved through a variety of means. *Membranophones (such as timpani) are tuned by altering the surface tension of the face that is struck. *Idiophones (such as crotales) gain their pitch through the physical characteristics (such as composition, density, and physical dimensions) of each respective bar. The term ''pitched percussion'' is now preferred to the traditional term ''tuned percussion'': * Many ''untuned'' percussion instruments (such as the bass drum) are ''tuned'' by the player, but this tuning does not relate to a particular pitch. * ''Untuned'' percussion instruments can and frequently do make sounds that could be used as pitched notes in an appropriate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ride Cymbal
The ride cymbal is a standard cymbal in most drum kits. Its function in the kit is to maintain a beat,Schroedl, Scott (2001). ''Play Drums Today!'', p.7. Hal Leonard. . "It's called the ride cymbal because you 'ride' on it--that is, you maintain a steady pattern." sometimes called a ride pattern, rather than the accent of a crash. It is normally placed on the extreme right (or dominant hand) of a drum set, above the floor tom.Peckman, Jonathan (2007). ''Picture Yourself Drumming'', p.195. . The ride can fulfill any function or rhythm the hi-hat does, with the exception of an open and closed sound. The ride is played with a drumstick. Terminology The term ''ride'' means ''to ride with the music'', describing the cymbal's sustain after it is struck. The term may depict either the function or characteristic of the instrument. Most cymbal makers manufacture specific cymbals for the purpose. Some drummers use a china cymbal, a sizzle cymbal or a specialized tone such as a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymbal Bell
A cymbal is a common percussion instrument. Often used in pairs, cymbals consist of thin, normally round plates of various alloys. The majority of cymbals are of indefinite pitch, although small disc-shaped cymbals based on ancient designs sound a definite note (such as crotales). Cymbals are used in many ensembles ranging from the orchestra, percussion ensembles, jazz bands, heavy metal bands, and marching groups. Drum kits usually incorporate at least a crash, ride, or crash/ride, and a pair of hi-hat cymbals. A player of cymbals is known as a cymbalist. Etymology and names The word cymbal is derived from the Latin ''cymbalum'', which is the latinisation of the Greek word ''kymbalon'', "cymbal", which in turn derives from ''kymbē'', "cup, bowl". In orchestral scores, cymbals may be indicated by the French ''cymbales''; German ''Becken'', ''Schellbecken'', ''Teller'', or ''Tschinellen''; Italian ''piatti'' or ''cinelli''; and Spanish ''platillos''. Many of these deriv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensations Of Tone
''On the Sensations of Tone as a Physiological Basis for the Theory of Music'' (German ), commonly referred to as ''Sensations of Tone'', is a foundational work on music acoustics and the perception of sound by Hermann von Helmholtz. The first German edition was published in 1863. The English translation by Alexander J. Ellis was first published in 1875 (the first English edition was from the 1870 third German edition; the second English edition from the 1877 fourth German edition was published in 1885; the 1895 and 1912 third and fourth English editions were reprints of the second edition). The editions translated into English contain detailed commentary and notes (titled "Additions by the Translator") by Ellis. Helmholtz declared that he started working on his book in 1854, which concluded in 1862. Helmholtz started publishing on acoustics in 1852. His last article on acoustics was in 1878, reviewing the book by Lord Rayleigh (Theory of Sound). Therefore, Helmholtz published ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vibrating String
A vibration in a string is a wave. Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch. If the length or tension of the string is correctly adjusted, the sound produced is a musical tone. Vibrating strings are the basis of string instruments such as guitars, cellos, and pianos. Wave The velocity of propagation of a wave in a string (v) is proportional to the square root of the force of tension of the string (T) and inversely proportional to the square root of the linear density (\mu) of the string: v = \sqrt. This relationship was discovered by Vincenzo Galilei in the late 1500s. Derivation Source: Let \Delta x be the length of a piece of string, m its mass, and \mu its linear density. If angles \alpha and \beta are small, then the horizontal components of tension on either side can both be approximated by a constant T, for which the net horizontal force is zero. Accordingly, using the small angle approximation, the horiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irrational Number
In mathematics, the irrational numbers (from in- prefix assimilated to ir- (negative prefix, privative) + rational) are all the real numbers that are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers. When the ratio of lengths of two line segments is an irrational number, the line segments are also described as being '' incommensurable'', meaning that they share no "measure" in common, that is, there is no length ("the measure"), no matter how short, that could be used to express the lengths of both of the two given segments as integer multiples of itself. Among irrational numbers are the ratio of a circle's circumference to its diameter, Euler's number ''e'', the golden ratio ''φ'', and the square root of two. In fact, all square roots of natural numbers, other than of perfect squares, are irrational. Like all real numbers, irrational numbers can be expressed in positional notation, notably as a decimal number. In the ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overtone
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] |
Acoustic Membrane
An acoustic membrane is a thin layer that vibrates and is used in acoustics to produce or transfer sound, such as a drum, microphone, or loudspeaker. See also * Membranophone A membranophone is any musical instrument which produces sound primarily by way of a vibrating stretched membrane. It is one of the four main divisions of instruments in the original Hornbostel-Sachs scheme of musical instrument classification. ... * Vibrations of a circular membrane Acoustics Sound {{acoustics-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noise In Music
In music, noise is variously described as unpitched, indeterminate, uncontrolled, loud, unmusical, or unwanted sound. Noise is an important component of the sound of the human voice and all musical instruments, particularly in unpitched percussion instruments and electric guitars (using distortion). Electronic instruments create various colours of noise. Traditional uses of noise are unrestricted, using all the frequencies associated with pitch and timbre, such as the white noise component of a drum roll on a snare drum, or the transients present in the prefix of the sounds of some organ pipes. The influence of modernism in the early 20th century lead composers such as Edgard Varèse to explore the use of noise-based sonorities in an orchestral setting. In the same period the Italian Futurist Luigi Russolo created a "noise orchestra" using instruments he called intonarumori. Later in the 20th century the term noise music came to refer to works consisting primarily of no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
