 | This article needs additional citations for verification .(September 2014) |
In jazz, comping (an abbreviation of accompaniment; [2] or possibly from the verb, to "complement") is the chords, rhythms, and countermelodies that keyboard players (piano or organ), guitar players, or drummers use to support a musician's improvised solo or melody lines. It is also the action of accompanying, and the left-hand part of a solo pianist. [3]
In a standard jazz combo, the pianist or guitarist typically comps during the horn and double bass solos by improvising chords and countermelodies.
The chordal accompaniment used in jazz is different from the chordal accompaniment style used in many types of popular music, such as rock and folk.
In combos with a guitar player, the guitar player usually comps for soloists. If there are both a pianist and a guitarist, as sometimes occurs in organ trios or big bands, they may either alternate comping or comp at the same time. Having two chordal instruments comp at the same time is difficult to do well. The two compers may make different, clashing interpretations of the same chord (e.g., the pianist may add a flat 13th, while the guitarist plays a natural 13th), or the texture may become overly cluttered. One solution is for the two comping instrumentalists to play sparsely.
Comping is almost always improvised by the comping musicians based on a chord chart, lead sheet (which contains the chords written above the melody), sheet music, or, in country music, the Nashville Number System. The exception is well-known progressions (e.g., 12 bar blues) and jazz standards such as "I Got Rhythm", known colloquially as "rhythm changes". For well-known progressions, the bandleader may simply say "solos on blues changes" or "solos on rhythm changes", and the comping musicians are expected to be familiar with these chord progressions. Top soloists playing with the most advanced comping musicians may simply call out the name of jazz standards, and the sidemen will be expected to know the chord progression. For example, the soloist may request "Autumn Leaves" without providing the compers with a chord chart or sheet music. The compers at the highest professional level would be expected to know this tune.
Since there are many variant versions of these chord progressions, the comping musicians will have to come to an unspoken consensus on which chords to use. For example, there are many different turnarounds used for the last two bars of a 12 bar blues; however, if the bandleader, playing Hammond organ, plays I/VI7/ii7/V7 for the turnaround, most skilled compers will hear these chords by ear and then replicate them in subsequent choruses (each full playing of the 12-bar progression is colloquially called a "chorus").
During swing-feel songs, drummers will usually comp with one hand on the snare drum while playing time on the cymbals, typically on the ride cymbal (see drum kit). More skilled drummers often comp with even all three limbs excluding their right-hand ride pattern (snare drum, bass drum, hi-hats). They will most likely develop the simple jazz drum pattern and add a few "bomb" bass drum notes for extra effect.
In small jazz ensembles ("combos") with more unusual instrumentation, horn players (e.g., saxophone, trumpet, etc.) can comp by playing the melody line in the background, or by playing a sequence of notes called "guide tones" which outline the harmonic framework. Guide tones are usually the 3rd, 7th, or 9th notes of a given chord. Guide tone lines are constructed by descending (or ascending) through the guide tones of the chart, normally by semitone or tone. For instance, in a duo for saxophone and bass, the saxophonist might comp during the bass solo by playing guide tones.
For example, during the standard jazz chord progression ii7/V7/I/VI7 (in the key of C Major, this would be Dm7/G7/C/A7), a horn player might play the guide tones, in whole notes, C (minor 7th of d minor), B (third of G7), A (sixth of C; sixths are added to major chords in jazz even when not specified) and G (minor 7th of A7). This is only one possible guide tone sequence. A second guide tone sequence (in whole notes) might be F (minor third of d minor), E (sixth of G7), D (ninth of C Major; as with sixths, ninths are often added to chord voicings even when not indicated), C# (major third of A7).
During a drum solo, the entire band may tacet (called "laying out" in jazz slang). Alternatively, the pianist (and possibly the bassist and/or guitarist or organist) sometimes comps, often using a predictable pattern of rhythmically played chords called "hits". A well-known example is the second half of "Take Five", with Dave Brubeck's piano vamp comping for Joe Morello's drum solo. During piano solos, pianists often comp for themselves, playing melodic lines and solos with the right hand while comping with the left hand.
While any jazz instrument can be used for comping, the chordal rhythm section instruments (piano, organ, and guitar) have developed the largest collection of pedagogical materials about comping. Since a jazz soloist has such wide-ranging harmonic, melodic, and rhythmic possibilities, chordal instrumentalists must have a similarly wide range of tools at their disposal to support the soloist properly.
Comping musicians must know many different types of chord voicings so that they can match the mood the soloist is trying to create. To support some soloists, a comper needs to use very simple voicings (such as the 3rd and 7th of a chord). However, for other soloists who play in a very dense, complicated style, compers may need to use chords with many additional extensions, such as 9ths, 13ths, and altered voicings; they may also re-harmonize chord progressions depending on the soloist, thus creating a feedback of idea exchange between the soloist and the comper. For the most sophisticated soloists, a comper may need to be able to respond in real time to newly improvised implied chord changes.
Compers must have an understanding of rhythm that allows them to respond to the rhythms and beat patterns the soloist plays, such as Latin or Afro-Cuban rhythms. As well, they must have a melodic sense based on a knowledge of a huge repertoire of different scales and scalar patterns, to be able to improvise countermelodies to supplement the soloist's melodies and fill in empty spaces.
By comping, pianists, organists, and guitarists provide the "glue" that holds the rhythm section together. They take the soloist's improvised solos and melodies and add harmonies (as a bass player does) and rhythms (as a drummer does). By doing this, the comper helps ensure that the band is always at the same energy level as the soloist. Wynton Kelly and Herbie Hancock are examples of pianists who are responsive when comping. Oscar Peterson usually comped busily, while Count Basie comped sparsely. There is no single appropriate way to comp for a soloist.
A comper adapts his or her style to that of the soloist. In a jazz band with multiple soloists, this may require different styles for different soloists. For example, the saxophone player in a band may imply many extensions and altered chords in his soloing (e.g., b9, b13, etc.). For this soloist, a comper may decide to play altered dominants and dense harmonies. The next soloist, a jazz guitarist, may play sparse, delicate melody lines, with much space. For this soloist, the comper may use open voicings, omit passing chords, and try to play mainly in the space left by the soloist. If a soloist starts implying a certain style or feel in his solo, whether this is Afro-Cuban music or hard-driving swing, the entire rhythm section may shift to this style to support him.
In a tune, if a soloist starts playing in a jazz-rock fusion style, the comping musicians may adapt and shift into a rock-influenced groove. A guitarist who is comping may turn on an overdrive pedal to add rock music-style "growl" to his tone. A guitarist may also use other effects units, such as a chorus effect. A keyboardist playing Fender Rhodes electric piano or Hammond organ may turn up his preamplifier to produce a natural tube overdrive tone for his sound. A drummer may shift to a rock style of drumming.
In all but the largest big bands, the comping sidemen in a jazz show are often called upon by the bandleader to improvise a solo. Here, the comper takes centre stage and performs an improvised melody line. For 1920s Dixieland and some Swing era jazz, the comper may embellish the melody line and improvise by ear during his solo. For Bebop-style groups, the comper playing a solo will often base his improvisations on the chord progression of the song. Bebop tunes often have one, two or even three chord changes per bar and some tunes change keys every few bars; as such, it is hard to solo "by ear" on a Bebop song.
Jazz guitar may refer to either a type of electric guitar or a guitar playing style in jazz, using electric amplification to increase the volume of acoustic guitars.
In music performances, rhythm guitar is a technique and role that performs a combination of two functions: to provide all or part of the rhythmic pulse in conjunction with other instruments from the rhythm section ; and to provide all or part of the harmony, i.e. the chords from a song's chord progression, where a chord is a group of notes played together. Therefore, the basic technique of rhythm guitar is to hold down a series of chords with the fretting hand while strumming or fingerpicking rhythmically with the other hand. More developed rhythm techniques include arpeggios, damping, riffs, chord solos, and complex strums.
Bebop or bop is a style of jazz developed in the early-to-mid-1940s in the United States. The style features compositions characterized by a fast tempo, complex chord progressions with rapid chord changes and numerous changes of key, instrumental virtuosity, and improvisation based on a combination of harmonic structure, the use of scales and occasional references to the melody.
An altered chord is a chord that replaces one or more notes from the diatonic scale with a neighboring pitch from the chromatic scale. By the broadest definition, any chord with a non-diatonic chord tone is an altered chord. The simplest example of altered chords is the use of borrowed chords, chords borrowed from the parallel key, and the most common is the use of secondary dominants. As Alfred Blatter explains, "An altered chord occurs when one of the standard, functional chords is given another quality by the modification of one or more components of the chord."
A jazz scale is any musical scale used in jazz. Many "jazz scales" are common scales drawn from Western European classical music, including the diatonic, whole-tone, octatonic, and the modes of the ascending melodic minor. All of these scales were commonly used by late nineteenth and early twentieth-century composers such as Rimsky-Korsakov, Debussy, Ravel and Stravinsky, often in ways that directly anticipate jazz practice. Some jazz scales, such as the bebop scales, add additional chromatic passing tones to the familiar diatonic scales.
A chord, in music, is any harmonic set of pitches consisting of multiple notes that are sounded simultaneously, or nearly so. For many practical and theoretical purposes, arpeggios and other types of broken chords may also be considered as chords in the right musical context.
Bassline is the term used in many styles of music, such as blues, jazz, funk, dub and electronic, traditional, and classical music, for the low-pitched instrumental part or line played by a rhythm section instrument such as the electric bass, double bass, cello, tuba or keyboard.
Accompaniment is the musical part which provides the rhythmic and/or harmonic support for the melody or main themes of a song or instrumental piece. There are many different styles and types of accompaniment in different genres and styles of music. In homophonic music, the main accompaniment approach used in popular music, a clear vocal melody is supported by subordinate chords. In popular music and traditional music, the accompaniment parts typically provide the "beat" for the music and outline the chord progression of the song or instrumental piece.
Lead guitar is a musical part for a guitar in which the guitarist plays melody lines, instrumental fill passages, guitar solos, and occasionally, some riffs and chords within a song structure. The lead is the featured guitar, which usually plays single-note-based lines or double-stops. In rock, heavy metal, blues, jazz, punk, fusion, some pop, and other music styles, lead guitar lines are usually supported by a second guitarist who plays rhythm guitar, which consists of accompaniment chords and riffs.
A rhythm section is a group of musicians within a music ensemble or band that provides the underlying rhythm, harmony and pulse of the accompaniment, providing a rhythmic and harmonic reference and "beat" for the rest of the band. The rhythm section is often contrasted with the roles of other musicians in the band, such as the lead guitarist or lead vocals whose primary job is to carry the melody.
The diminished seventh chord is a four-note chord composed of a root note, together with a minor third, a diminished fifth, and a diminished seventh above the root:. For example, the diminished seventh chord built on B, commonly written as Bo7, has pitches B-D-F-A♭:
In music theory, chord substitution is the technique of using a chord in place of another in a progression of chords, or a chord progression. Much of the European classical repertoire and the vast majority of blues, jazz and rock music songs are based on chord progressions. "A chord substitution occurs when a chord is replaced by another that is made to function like the original. Usually substituted chords possess two pitches in common with the triad that they are replacing."
Jazz harmony is the theory and practice of how chords are used in jazz music. Jazz bears certain similarities to other practices in the tradition of Western harmony, such as many chord progressions, and the incorporation of the major and minor scales as a basis for chordal construction. In jazz, chords are often arranged vertically in major or minor thirds, although stacked fourths are also quite common. Also, jazz music tends to favor certain harmonic progressions and includes the addition of tensions, intervals such as 9ths, 11ths, and 13ths to chords. Additionally, scales unique to style are used as the basis of many harmonic elements found in jazz. Jazz harmony is notable for the use of seventh chords as the basic harmonic unit more often than triads, as in classical music. In the words of Robert Rawlins and Nor Eddine Bahha, "7th chords provide the building blocks of jazz harmony."
Jazz piano is a collective term for the techniques pianists use when playing jazz. The piano has been an integral part of the jazz idiom since its inception, in both solo and ensemble settings. Its role is multifaceted due largely to the instrument's combined melodic and harmonic capabilities. For this reason it is an important tool of jazz musicians and composers for teaching and learning jazz theory and set arrangement, regardless of their main instrument. By extension the phrase 'jazz piano' can refer to similar techniques on any keyboard instrument.
Jazz chords are chords, chord voicings and chord symbols that jazz musicians commonly use in composition, improvisation, and harmony. In jazz chords and theory, most triads that appear in lead sheets or fake books can have sevenths added to them, using the performer's discretion and ear. For example, if a tune is in the key of C, if there is a G chord, the chord-playing performer usually voices this chord as G7. While the notes of a G7 chord are G–B–D–F, jazz often omits the fifth of the chord—and even the root if playing in a group. However, not all jazz pianists leave out the root when they play voicings: Bud Powell, one of the best-known of the bebop pianists, and Horace Silver, whose quintet included many of jazz's biggest names from the 1950s to the 1970s, included the root note in their voicings.
Jazz improvisation is the spontaneous invention of melodic solo lines or accompaniment parts in a performance of jazz music. It is one of the defining elements of jazz. Improvisation is composing on the spot, when a singer or instrumentalist invents melodies and lines over a chord progression played by rhythm section instruments and accompanied by drums. Although blues, rock, and other genres use improvisation, it is done over relatively simple chord progressions which often remain in one key.
In music, harmonization is the chordal accompaniment to a line or melody: "Using chords and melodies together, making harmony by stacking scale tones as triads".
This is a glossary of jazz and popular music terms that are likely to be encountered in printed popular music songbooks, fake books and vocal scores, big band scores, jazz, and rock concert reviews, and album liner notes. This glossary includes terms for musical instruments, playing or singing techniques, amplifiers, effects units, sound reinforcement equipment, and recording gear and techniques which are widely used in jazz and popular music. Most of the terms are in English, but in some cases, terms from other languages are encountered.
In music, a passing chord is a chord that connects, or passes between, the notes of two diatonic chords. "Any chord that moves between one diatonic chord and another one nearby may be loosely termed a passing chord. A diatonic passing chord may be inserted into a pre-existing progression that moves by a major or minor third in order to create more movement." "'Inbetween chords' that help you get from one chord to another are called passing chords."
Musicians use various kinds of chord names and symbols in different contexts to represent musical chords. In most genres of popular music, including jazz, pop, and rock, a chord name and its corresponding symbol typically indicate one or more of the following:
| Musical instruments |  | |
|---|---|---|
| Techniques and styles | ||
| Music ensembles | ||