Chord Music

chord, in music, is any harmonic set of pitches consisting of two or more notes that are heard as if sounding simultaneously. Chords and sequences of chords are frequently used in modern West African and Oceanic music, Western classical music, and Western popular music; yet, they are absent from the music of many other parts of the world. In tonal Western classical music, the most frequently encountered chords are triads, so called because they consist of three distinct notes: the root note, and Intervals of a third and a fifth above the root note. Other chords with more than three notes include added tone chords, extended chords and tone clusters, which are used in contemporary classical music, jazz and other genres. An ordered series of chords is called a chord progression. One example of a widely used chord progression in Western traditional music and blues is the 12 bar blues progression. Although any chord may in principle be followed by any other chord, certain patterns of chords are more common in Western music, and some patterns have been accepted as establishing the key(tonic note) in common-practice harmony–notably the movement between tonic and dominant chords. To describe this, Western music theory has developed the practice of numbering chords using Roman numerals which represent the number of diatonic steps up from the tonic note of the scale. Common ways of notating or representing chords in Western

Disco Music

Disco is a genre of dance music containing elements of funk, soul, pop and salsa. It achieved popularity during the mid-1970s to the early 1980s. Its initial audiences in the U.S. were club-goers from the gay, African American, Italian American, Latino, and psychedelic communities in Philadelphia and New York City during the late 1960s and early 1970s. Disco can be seen as a reaction against both the domination of rock music and the stigmatization of dance music by the counterculture during this period. Disco was popular with both men and women from many different backgrounds, with dances including The Bump (1974), The Hustle (1975) and Y.M.C.A. (1978). The disco sound often has several components, a “four-on-the-floor” beat, an eighth note (quaver) or 16th note (semi-quaver) hi-hatpattern with an open hi-hat on the off-beat, and a prominent, syncopated electric bass line. In most disco tracks, string sections, horns, electric piano, and electric rhythm guitars create a lush background sound. Orchestral instruments such as the flute are often used for solo melodies, and lead guitar is less frequently used in disco than in rock. Many disco songs use electronic synthesizers, particularly in the late 1970s. Disco was a key influence in the later development of electronic dance music and house music. Disco has had several revivals, including in 2005 with Madonna’s highly successful album Confessions on a Dance Floor, and again in 2013

Jazz Music

Jazz is a music genre that originated in African American communities of New Orleans, United States, in the late 19th and early 20th centuries, and developed from roots in blues and ragtime. Since the 1920s Jazz Age, jazz has become recognized as a major form of musical expression. It then emerged in the form of independent traditional and popular musical styles, all linked by the common bonds of African American and European American musical parentage with a performance orientation. Jazz is characterized by swing and blue notes, call and response vocals, polyrhythms and improvisation. Jazz has roots in West African cultural and musical expression, and in African-American music traditions including blues and ragtime, as well as European military band music. Although the foundation of jazz is deeply rooted within the black experience of the United States, different cultures have contributed their own experience and styles to the art form as well. Intellectuals around the world have hailed jazz as “one of America’s original art forms”.

As jazz spread around the world, it drew on different national, regional, and local musical cultures, which gave rise to many distinctive styles. New Orleans jazz began in the early 1910s, combining earlier brass-band marches, French quadrilles, biguine, ragtime and blues with collective polyphonic improvisation. In the 1930s, heavily arranged dance-oriented swing big bands, Kansas City jazz, a hard-swinging, bluesy, improvisational style and Gypsy jazz (a style that


The saxophone is a family of woodwind instruments. Saxophones are usually made of brass and played with a single-reed mouthpiece similar to that of the clarinet. Like the clarinet, saxophones have holes in the instrument which the player closes using a system of key mechanisms. When the player presses a key, a pad either covers a hole or lifts off a hole, lowering or raising the pitch, respectively. The saxophone family was invented by the Belgian instrument maker Adolphe Sax in 1840. Adolphe Sax wanted to create a group or series of instruments that would be the most powerful and vocal of the woodwinds, and the most adaptive of the brass instruments, that would fill the vacant middle ground between the two sections. Mr. Sax patented the saxophone on June 28, 1846, in two groups of seven instruments each. Each series consisted of instruments of various sizes in alternating transposition. The series pitched in B and E, designed for military bands, have proved popular and most saxophones encountered today are from this series. Instruments from the so-called “orchestral” series, pitched in C and F, never gained a foothold, and the B and E instruments have now replaced the C and F instruments when the saxophone is used in an orchestra.


In music, the organ is a keyboard instrument of one or more pipe divisions, each played with its own keyboard, played either with the hands on a keyboard or with the feet using pedals. The organ is a relatively old musical instrument, dating from the time of Ctesibius of Alexandria, who invented the water organ. It was played throughout the Ancient Greek and Ancient Roman world, particularly during races and games. During the early medieval period it spread from the Byzantine Empire, where it continued to be used in secular (non-religious) and imperial court music, to Western Europe, where it gradually assumed a prominent place in the liturgy of the Catholic Church. Subsequently it re-emerged as a secular and recital instrument in the Classical music tradition.

Most organs in Europe, the Americas, and Australasia can be found in Christian churches. The introduction of church organs is traditionally attributed to Pope Vitalian in the 7th century. Due to its simultaneous ability to provide a musical foundation below the vocal register, support in the vocal register, and increased brightness above the vocal register, the organ is ideally suited to accompany human voices, whether a congregation, a choir, or a cantor or soloist. Most services also include solo organ repertoire for independent performance rather than by way of accompaniment, often as a prelude at the beginning the service and a postlude at the


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. Drums may be played individually, with the player using a single drum, and some drums such as the djembe are almost always played in this way. Others are normally played in a set of two or more, all played by the one player, such as bongo drums and timpani. A number of different drums together with cymbals form the basic modern drum kit.

Drums are usually played by striking with the hand, or with one or two sticks. In many traditional cultures, drums have a symbolic function and are used in religious ceremonies. Drums are often used in music therapy, especially hand drums, because of


The guitar is a musical instrument classified as a fretted string instrument with anywhere from four to 18 strings, usually having six. The sound is projected either acoustically, using a hollow wooden or plastic and wood box (for an acoustic guitar), or through electrical amplifier and a speaker (for an electric guitar). It is typically played by strumming or plucking the strings with the fingers, thumb or fingernails of the right hand or with a pick while fretting (or pressing against the frets) the strings with the fingers of the left hand. The guitar is a type of chordophone, traditionally constructed from wood and strung with either gut, nylon or steel strings and distinguished from other chordophones by its construction and tuning. The modern guitar was preceded by the gittern, the vihuela, the four-course Renaissance guitar, and the five-course baroque guitar, all of which contributed to the development of the modern six-string instrument.

There are three main types of modern acoustic guitar: the classical guitar (nylon-string guitar), the steel-string acoustic guitar, and the archtop guitar, which is sometimes called a “jazz guitar”. The tone of an acoustic guitar is produced by the strings’ vibration, amplified by the hollow body of the guitar, which acts as a resonating chamber. The classical guitar is often played as a solo instrument using a comprehensive finger-picking technique where each string is plucked individually by

Harmony Music

In music, harmony considers the process by which the composition of individual sounds, or superpositions of sounds, is analysed by hearing. Usually, this means simultaneously occurring frequencies, pitches (tones, notes), or chords. The study of harmony involves chords and their construction and chord progressions and the principles of connection that govern them. Harmony is often said to refer to the “vertical” aspect of music, as distinguished from melodic line, or the “horizontal” aspect. Counterpoint, which refers to the relationship between melodic lines, and polyphony, which refers to the simultaneous sounding of separate independent voices, are thus sometimes distinguished from harmony. In popular and jazz harmony, chords are named by their root plus various terms and characters indicating their qualities. In many types of music, notably baroque, romantic, modern, and jazz, chords are often augmented with “tensions”. A tension is an additional chord member that creates a relatively dissonant interval in relation to the bass. Typically, in the classical common practice period a dissonant chord (chord with tension) “resolves” to a consonant chord. Harmonization usually sounds pleasant to the ear when there is a balance between the consonant and dissonant sounds. In simple words, that occurs when there is a balance between “tense” and “relaxed” moments.

Some traditions of Western music performance, composition, and theory have specific rules of harmony. These rules are often described as based on

Triad Music

In music, a triad is a set of three notes (or “pitches”) that can be stacked vertically in thirds. The term “harmonic triad” was coined by Johannes Lippius in his Synopsis musicae novae (1612). When stacked in thirds, notes produce triadic chords. The triad’s members, from lowest-pitched tone to highest, are called:

  • the root
  • the third – its interval above the root being a minor third (three semitones) or a major third (four semitones)
  • the fifth – its interval above the third being a minor third or a major third, hence its interval above the root being a diminished fifth (six semitones), perfect fifth (seven semitones), or augmented fifth (eight semitones). Perfect fifths are the most commonly used interval above the root in Western classical, popular and traditional music.

Some twentieth-century theorists, notably Howard Hanson and Carlton Gamer, expand the term to refer to any combination of three different pitches, regardless of the intervals amongst them. The word used by other theorists for this more general concept is “trichord”. Others, notably Allen Forte, use the term to refer to combinations apparently stacked of other intervals, as in “quartal triad”. In the late Renaissance music era, and especially during the Baroque music era (1600–1750), Western art music shifted from a more “horizontal” contrapuntal approach (in which multiple, independent melody lines were interwoven) toward chord progressions, which are sequences of chords. The chord progression approach, which was the foundation

Dance Music

Dance music is music composed specifically to facilitate or accompany dancing. It can be either a whole musical piece or part of a larger musical arrangement. In terms of performance, the major categories are live dance music and recorded dance music. While there exist attestations of the combination of dance and music in ancient times (for example Ancient Greek vases sometimes show dancers accompanied by musicians), the earliest Western dance music that we can still reproduce with a degree of certainty are the surviving medieval dances. In the Baroque period, the major dance styles were noble court dances (see Baroque dance). In the classical music era, the minuet was frequently used as a third movement, although in this context it would not accompany any dancing. The waltz also arose later in the classical era. Both remained part of the romantic music period, which also saw the rise of various other nationalistic dance forms like the barcarolle, mazurka, ecossaise, ballade and polonaise.

Modern popular dance music initially emerged from late 19th century’s Western ballroom and social dance music. During the early 20th century, ballroom dancing gained popularity among the working class who attended public dance halls. Dance music became enormously popular during the 1920s. In the 1930s, called the Swing era, Swing music was the popular dance music in America. In the 1950s, rock and roll became the popular dance music. The late 1960s saw

Beat Music

In music and music theory, the beat is the basic unit of time, the pulse (regularly repeating event), of the mensural level (or beat level). The beat is often defined as the rhythm listeners would tap their toes to when listening to a piece of music, or the numbers a musician counts while performing, though in practice this may be technically incorrect (often the first multiple level). In popular use, beat can refer to a variety of related concepts including: tempo, meter, specific rhythms, and groove. Rhythm in music is characterized by a repeating sequence of stressed and unstressed beats (often called “strong” and “weak”) and divided into bars organized by time signature and tempo indications. Metric levels faster than the beat level are division levels, and slower levels are multiple levels. Beat has always been an important part of music. Some music genres such as disco will in general de-emphasize the beat, while other such as funk emphasize the beat to accompany dance.

The downbeat is the first beat of the bar, i.e. number 1. The upbeat is the last beat in the previous bar which immediately precedes, and hence anticipates, the downbeat. Both terms correspond to the direction taken by the hand of a conductor. A back beat, or backbeat, is a syncopated accentuation on the “off” beat. In a simple 4rhythm these are beats 2 and 4. A hyperbeat is one unit of hypermeter, generally a measure. “Hypermeter is meter, with all its inherent

Folk Music

Folk music includes both traditional music and the genre that evolved from it during the 20th century folk revival. The term originated in the 19th century, but is often applied to music older than that. Some types of folk music are also called world music. Traditional folk music has been defined in several ways: as music transmitted orally, music with unknown composers, or music performed by customover a long period of time. It has been contrasted with commercial and classical styles. Starting in the mid-20th century, a new form of popular folk music evolved from traditional folk music. This process and period is called the (second) folk revival and reached a zenith in the 1960s. This form of music is sometimes called contemporary folk music or folk revival music to distinguish it from earlier folk forms. Smaller, similar revivals have occurred elsewhere in the world at other times, but the term folk music has typically not been applied to the new music created during those revivals. This type of folk music also includes fusion genres such as folk rock, folk metal, electric folk, and others. While contemporary folk music is a genre generally distinct from traditional folk music, in English it shares the same name, and it often shares the same performers and venues as traditional

Musical Scale

In music theory, a scale is any set of musical notes ordered by fundamental frequency or pitch. A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale. Some scales contain different pitches when ascending than when descending, for example, the melodic minor scale. Often, especially in the context of the common practice period, most or all of the melody and harmony of a musical work is built using the notes of a single scale, which can be conveniently represented on a staff with a standard key signature. Due to the principle of octave equivalence, scales are generally considered to span a single octave, with higher or lower octaves simply repeating the pattern. A musical scale represents a division of the octave space into a certain number of scale steps, a scale step being the recognizable distance (or interval) between two successive notes of the scale. However, there is no need for scale steps to be equal within any scale and, particularly as demonstrated by microtonal music, there is no limit to how many notes can be injected within any given musical interval.

A measure of the width of each scale step provides a method to classify scales. For instance, in a chromatic scale each scale step represents a semitone interval, while

Ska Music

Ska is a music genre that originated in Jamaica in the late 1950s and was the precursor to rocksteady and reggae. Ska combined elements of Caribbean mento and calypso with American jazz and rhythm and blues. It is characterized by a walking bass line accented with rhythms on the off-beat. Ska developed in Jamaica in the 1960s when Prince Buster, Clement “Coxsone” Dodd, and Duke Reid formed sound systems to play American rhythm and blues and then began recording their own songs. Some suggest ska dates to earlier times, however. In the early 1960s, ska was the dominant music genre of Jamaica and was popular with British mods. Later it became popular with many skinheads. Music historians typically divide the history of ska into three periods: the original Jamaican scene of the 1960s; the 2 Tone ska revival of the late 1970s in Britain, which fused Jamaican ska rhythms and melodies with the faster tempos and harder edge of punk rock; and the third wave of ska, which involved bands from the UK, other European countries (notably Germany), Australia, Japan, South America and the United States, beginning in the 1980s and peaking in the 1990s.

There are multiple theories about the origins of the word ska. Ernest Ranglin claimed that the term was coined by musicians to refer to the “skat! skat! skat!” scratching guitar strum. Ranglin asserted that the difference between R&B and ska


An orchestra  is a large instrumental ensemble typical of classical music, which mixes instruments from different families, including bowed string instruments such as violin, viola, cello and double bass, as well as brass, woodwinds, and percussion instruments, each grouped in sections. Other instruments such as the piano and celesta may sometimes appear in a fifth keyboard section or may stand alone, as may the concert harp and, for performances of some modern compositions, electronic instruments. A full-size orchestra may sometimes be called a symphony orchestra or philharmonic orchestra. The actual number of musicians employed in a given performance may vary from seventy to over one hundred musicians, depending on the work being played and the size of the venue. The term chamber orchestra (and sometimes concert orchestra) usually refers to smaller-sized ensembles of about fifty musicians or fewer. Orchestras that specialize in the Baroque music of, for example, Johann Sebastian Bach and George Frideric Handel, or Classical repertoire, such as that of Haydn and Mozart, tend to be smaller than orchestras performing a Romantic music repertoire, such as the symphonies of Johannes Brahms. The typical orchestra grew in size throughout the 18th and 19th centuries, reaching a peak with the large orchestras (of as many as 120 players) called for in the works of Richard Wagner, and later, Gustav Mahler.

Orchestras are usually led by a conductor who directs the performance with movements of the hands and arms, often made easier for the musicians to see


Rapping is a musical form of vocal delivery that incorporates “rhyme, rhythmic speech, and street vernacular”, which is performed or chanted in a variety of ways, usually over a backbeat or musical accompaniment. The components of rap include “content” (what is being said), “flow” (rhythm, rhyme), and “delivery” (cadence, tone). Rap differs from spoken-word poetry in that rap is usually performed in time to an instrumental track. Rap is often associated with, and is a primary ingredient of hip-hop music, but the origins of the phenomenon predate hip-hop culture. The earliest precursor to modern rap is the West African griot tradition, in which “oral historians”, or “praise-singers”, would disseminate oral traditions and genealogies, or use their formidable rhetorical techniques for gossip or to “praise or critique individuals.” Griot traditions connect to rap along a lineage of Black verbal reverence that goes back to ancient Egyptian practices, through James Brown interacting with the crowd and the band between songs, to Muhammad Ali’s quick-witted verbal taunts and the palpitating poems of the Last Poets. Therefore, rap lyrics and music are part of the “Black rhetorical continuum”, and aim to reuse elements of past traditions while expanding upon them through “creative use of language and rhetorical styles and strategies. The person credited with originating the style of “delivering rhymes over extensive music”, that would become known as

R&B Music

Rhythm and blues, often abbreviated as R&B or RnB, is a genre of popular African-American music that originated in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when “urbane, rocking, jazz based music with a heavy, insistent beat” was becoming more popular. In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of piano, one or two guitars, bass, drums, saxophone, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American experience of pain and the quest for freedom and joy. The lyrics in this genre of music focus heavily on the themes of triumphs and failures in terms of relationships, freedom, economics, aspirations, and sex.

The term rhythm and blues has undergone a number of shifts in meaning. In the early 1950s it was frequently applied to bluesrecords. Starting in the mid-1950s, after this style of music contributed to the development of rock and roll, the term “R&B” became used to refer to music styles that developed from and incorporated electric blues, as well as gospel and soul music. In the 1960s, several British rock bands such as the Rolling Stones, The Who and The Animals were referred to and promoted as being RnB bands; posters for The Who’s residency

Dangdut Music

Dangdut is a genre of Indonesian folk and traditional popular music that is partly derived from Hindustani, Malay, and Arabic music. Dangdut is a very popular genre in Indonesia because of its melodious instrumentation and vocals. Indonesians dance in somewhat similar to the ghoomar while listening to dangdut music, but in a much slower version. Dangdut features a tabla and gendang beat. Dangdut really has strong Indian music influence from the basis of harmony, instrument, beat, and rhythm. One of the most populous Dangdut musicians and singers such as Rhoma Irama, known as the King of Dangdut; Mansyur S.; Meggy Z; and Ellya Khadam include strong Indian-music influence in the basis of harmony, theme, and beat to their songs and also by other popular dangdut singers also. Dangdut is very popular throughout Indonesia, Malaysia, Singapore, Brunei, and other Malay-speaking lands. A dangdut band typically consists of a lead singer, male or female, backed by four to eight musicians. Instruments usually include a tabla, gendang, flute, mandolin, guitars, sitar, drum machines, and synthesizers. The term has been expanded from the desert-style music to embrace other musical styles. Modern dangdut incorporates influences from Middle Eastern pop music, Western rock, house music, hip hop music, contemporary R&B, and reggae. The popularity of Dangdut peaked in the 1990s. By 2012, it was mostly popular in the western parts of Indonesia and not in the eastern parts, apart from Maluku.

The term dangdut is a Javanese language onomatopoeia for the sound

Rock Music

Rock music is a genre of popular music that originated as “rock and roll” in the United States in the early 1950s, and developed into a range of different styles in the 1960s and later, particularly in the United Kingdom and the United States. It has its roots in 1940s and 1950s rock and roll, a style which drew heavily on the African-American genres of blues and rhythm and blues, and from country music. Rock music also drew strongly on a number of other genres such as electric blues and folk, and incorporated influences from jazz, classical and other musical styles. Musically, rock has centered on the electric guitar, usually as part of a rock group with electric bass and drums and one or more singers. Typically, rock is song-based music usually with a 4/4 time signature using a verse–chorus form, but the genre has become extremely diverse. Like pop music, lyrics often stress romantic love but also address a wide variety of other themes that are frequently social or political.

By the late 1960s “classic rock” period, a number of distinct rock music subgenres had emerged, including hybrids like blues rock, folk rock, country rock, raga rock, and jazz-rock, many of which contributed to the development of psychedelic rock, which was influenced by the countercultural psychedelic and hippie scene. New genres that emerged included progressive rock, which extended the artistic elements; glam rock, which

Pop Music

Pop music is a genre of popular music that originated in its modern form in the United States and United Kingdom during the mid-1950s. The terms “popular music” and “pop music” are often used interchangeably, although the former describes all music that is popular and includes many styles. “Pop” and “rock” were roughly synonymous terms until the late 1960s, when they became increasingly differentiated from each other. Although pop music is seen as just the singles charts, it is not the sum of all chart music. Pop music is eclectic, and often borrows elements from other styles such as urban, dance, rock, Latin, and country; nonetheless, there are core elements that define pop music. Identifying factors include generally short to medium-length songs written in a basic format (often the verse-chorus structure), as well as the common use of repeated choruses, melodic tunes, and hooks.

Pop music has been dominated by the American and (from the mid-1960s) British music industries, whose influence has made pop music something of an international monoculture, but most regions and countries have their own form of pop music, sometimes producing local versions of wider trends, and lending them local characteristics. Some of these trends (for example Europop) have had a significant impact of the development of the genre.

According to Grove