Notes · MusicUK · A-Levels

Area of study 5: Jazz

This optional area of study traces jazz - its evolving styles and, above all, its defining art of improvisation - from early New Orleans jazz through swing, bebop and beyond. AQA studies it through named artists (such as Louis Armstrong, Duke Ellington, Miles Davis and Gwilym Simcock) whose work exemplifies the tradition; because those names rotate across specification cycles, this topic teaches the styles, harmony, improvisation and performance conventions of jazz rather than particular set recordings.

5 sections~24 min reading time3 competenciesLevel Foundation 1 · Standard 3 · Advanced 1

T·0666 / 11

Exam profile

AO3 · Analyse and appraise jazz styles and improvisation using the elements of musicAO3 · Understand jazz harmony, the blues, improvisation and the role of the rhythm sectionAO3 · Make evaluative judgements about jazz and compare it with other styles

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basic level

AS-Level expects recognition of the main jazz styles, the 12-bar blues, swing feel and the role of improvisation.

higher level

The full A-Level requires detailed analysis of jazz harmony, improvisation and performance conventions, and comparison with the other areas of study.

Depth

Text

Contents · 5 sections

Area of study 5: Jazz

The area of study: styles and improvisation#

FoundationAQA 7272 Area of study 5 (Jazz)DfE GCE Music subject content

A style map of jazz

Fig. 1Jazz evolved through a succession of styles across the twentieth century - New Orleans, swing, bebop, cool, modal and fusion - each with its own character.

Jazz is a music defined above all by improvisation, swing feel and its roots in African-American musical traditions, and understanding it means understanding both its evolving styles and its distinctive way of making music. Unlike the notated classical tradition, jazz is a performer's art in which musicians create and vary the music in the moment, over agreed structures and chord sequences, so the same tune sounds different every time it is played. AQA studies jazz through named artists spanning its history, including figures such as Louis Armstrong, Duke Ellington, Miles Davis and Gwilym Simcock; because AQA rotates these across cycles, study the artists named in your own specification and apply the general method taught here.

Jazz has a rich history of successive styles, each with its own character, and knowing the outline chronology is essential context. It runs from early New Orleans (Dixieland) jazz, through the big-band swing era, the virtuosic small-group bebop revolution, cool jazz, modal jazz and hard bop, to jazz-rock fusion and the many contemporary directions jazz has taken since. Each style has recognisable features of instrumentation, harmony, rhythm and improvisation, and the artists studied typically represent different points on this timeline. Recognising the style of an extract - and placing it in the chronology - is a foundation of jazz analysis.

The elements of music apply fully to jazz, but with distinctive priorities. Rhythm is central: the swing feel (uneven, long-short subdivisions and a relaxed, propulsive groove) and syncopation are defining. Harmony is often rich and extended, built from seventh, ninth and altered chords and standard progressions such as the blues and the ii-V-I. Melody is frequently improvised over a chord sequence, and timbre is highly individual - jazz prizes a personal 'voice' on an instrument, with expressive techniques such as bends, growls and vibrato. Texture is typically a soloist (or front line) over a rhythm section. Bringing the standard analytical vocabulary to these priorities is what the exam rewards.

Jazz is created in performance, so its conventions of performance and structure are part of what you analyse. Most jazz is built on a repeating structure - a chord sequence and often a tune (the 'head') - over which musicians improvise solos in turn, and the interaction between the players (the soloist and the rhythm section, or members of the front line) is essential to the music. Understanding the typical shapes of a jazz performance (the head-solos-head format, the role of each instrument, how musicians 'trade' and respond) lets you follow and analyse a performance rather than hearing it as a formless stream.

The following sections build the toolkit for this area: a style map of the main periods of jazz, the harmony and chord sequences jazz is built on, the art of improvisation and the role of the rhythm section, and how to bring it together in the exam. Throughout, remember that jazz is a living, performance-based, improvised tradition, and that its artistry lies in what musicians create in the moment over shared structures - which makes it a distinctive and rewarding subject for analysis and a rich source of contrast with the notated traditions in the comparative essay.

Worked example

Recognising a jazz style from its features

An extract has a large ensemble of brass and saxophone sections playing arranged, riff-based, syncopated music with a strong swing feel, driving a dance groove. What style is it?

Read the forces
A large ensemble organised into brass and saxophone sections is a big band, not a small combo - already a strong clue to the era.
Read the writing
The music is arranged (composed and notated for the sections) and built on riffs, with call-and-response between sections, rather than continuous small-group improvisation.
Read the rhythm
A strong swing feel driving a dance groove points to music written for dancing - the social function of the era.
Name the style
A riff-based, section-arranged big band with a strong danceable swing feel is swing-era jazz (the 1930s-40s big-band style), as exemplified by bandleaders such as Duke Ellington.

Result: The style is identified by reading the forces (big band), the writing (arranged, riff-based), and the rhythm (danceable swing) - placing the extract in the swing era through its characteristic features.

Typical mistakes

Treating jazz as fully composed like classical music and missing that much of it is improvised in performance over a chord sequence.
Describing jazz vaguely instead of naming its style, its swing feel and syncopation, its extended harmony and its structure.

Active revision

Take one jazz recording and write two sentences: one naming its style and placing it in the history of jazz, and one describing its rhythm feel, harmony and how improvisation features.

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for music (Department for Education)

A style map of jazz#

StandardAQA 7272 Area of study 5 (styles)DfE GCE Music subject content

Early jazz - New Orleans or Dixieland (from the 1910s-20s) - established the tradition, and its features are distinctive. It is played by a small group in which a front line of melody instruments (typically cornet or trumpet, clarinet and trombone) improvises together in collective, polyphonic improvisation over a rhythm section (which might include banjo, tuba or double bass, piano and drums). The texture is busy and contrapuntal, the feel is lively, and the music draws on the blues, ragtime and marches. Louis Armstrong emerged from this world and helped shift jazz toward the featured virtuoso soloist. Recognising collective front-line improvisation over a rhythm section is the key to identifying this earliest style.

The swing era (1930s-40s) made jazz the popular dance music of its day and moved it into the big band. Large ensembles organised into sections (trumpets, trombones, saxophones) played arranged, notated music built on riffs and call-and-response between the sections, with a strong, danceable swing feel driven by the rhythm section, and featured soloists improvising over the arrangements. Bandleaders and composer-arrangers such as Duke Ellington raised big-band writing to a high art. The move from small-group collective improvisation to large-ensemble arrangement, and the centrality of the swing groove, are the defining features to hear.

Bebop (1940s) was a revolution that turned jazz from popular dance music into a virtuosic art music for listening. Played by small combos at fast tempos, bebop featured dazzling, complex, angular improvised melodies over rich, fast-moving and often substituted chord changes, with an interactive, less strictly time-keeping rhythm section. It was harmonically and rhythmically far more sophisticated and demanding than swing, and it prized individual virtuosity and harmonic adventurousness. Recognising fast tempos, small-group textures, complex extended harmony and virtuosic improvisation points to bebop and the modern jazz that grew from it.

The 1950s and after brought several important developments. Cool jazz relaxed bebop's intensity into a smoother, more restrained, often more arranged and lyrical style. Modal jazz (from the late 1950s, associated with Miles Davis) freed improvisation from bebop's fast chord changes by basing pieces on a few scales or modes held for long stretches, giving soloists more space and a more open, spacious sound. Hard bop reconnected with the blues and gospel. From the late 1960s, jazz-rock fusion combined jazz improvisation with rock and funk rhythms, electric instruments and studio production. Each development is a response to what came before, so the timeline of jazz, like that of classical music, is a sequence of styles reacting and evolving.

Jazz has continued to develop and diversify to the present day, absorbing influences from around the world and from other genres, and contemporary jazz musicians such as Gwilym Simcock represent this ongoing, eclectic tradition. For the exam you need not master every substyle, but you should know the main landmarks - New Orleans, swing, bebop, cool, modal, fusion - their characteristic features, and roughly where the artists in your specification sit. This lets you place and characterise an extract, hear how a style relates to those around it, and, in an essay, trace the evolution of jazz as a living tradition that repeatedly reinvented itself while keeping its core of improvisation and swing.

Worked example

Distinguishing swing from bebop

Two extracts both swing, but one is a large ensemble playing arranged riffs at a danceable tempo, and the other is a small group at a very fast tempo playing complex, angular improvised lines over rapid chord changes. Distinguish the styles.

Compare the forces
The first is a big band (sections of brass and saxophones); the second is a small combo (a few soloists plus rhythm section) - a first key difference.
Compare the writing
The first is largely arranged and riff-based for dancing; the second is largely improvised, with the written 'head' just a springboard for solos.
Compare tempo and harmony
The first sits at a danceable tempo with fairly straightforward harmony; the second is very fast with complex, rapidly changing, extended and substituted chords.
Name the styles
The first is swing-era big-band jazz (popular dance music); the second is bebop (virtuosic modern jazz for listening) - the same swing feel, but opposite in function, forces and complexity.

Result: The two styles are distinguished by comparing forces, writing, tempo and harmony - swing's arranged, danceable big band versus bebop's virtuosic, complex small-group improvisation - showing how style features separate the eras.

Typical mistakes

Confusing New Orleans collective improvisation with big-band swing, or swing's arranged riffs with bebop's virtuosic small-group improvisation.
Treating jazz as one undifferentiated style rather than a chronology of distinct, evolving styles.

Active revision

Make a reference card for four jazz styles: for each, note its dates, typical forces, one harmonic or rhythmic feature, and its approach to improvisation.

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for music (Department for Education)

Jazz harmony and the changes#

StandardAQA 7272 Area of study 5 (harmony)DfE GCE Music subject content

The ii-V-I progression

Fig. 2The ii-V-I is the harmonic backbone of jazz - a minor seventh to a dominant seventh to the tonic - the unit musicians improvise over and modulate through.

Jazz is built on chord sequences - 'the changes' - over which musicians improvise, so understanding jazz harmony is essential. Jazz harmony is characteristically rich and extended: rather than plain triads, it uses seventh chords as its basic vocabulary (dominant sevenths, major sevenths, minor sevenths) and freely adds further notes - ninths, elevenths and thirteenths - and alterations (flattened or sharpened fifths and ninths) for colour and tension. This extended, coloured harmony gives jazz its distinctive sound and its harmonic sophistication, and analysing it means recognising these chord types rather than reducing everything to simple triads.

The blues is one of the two great foundations of jazz harmony and structure. The twelve-bar blues is a twelve-bar chord pattern built on the tonic (I), subdominant (IV) and dominant (V) chords - very often all played as dominant-seventh chords, which gives the blues its characteristic sound - in a standard sequence repeated over and over as successive choruses. Over it, the blues scale (a minor-pentatonic-based scale with expressive 'blue notes', flattened or bent pitches) shapes the melody and improvisation. The blues underlies a vast amount of jazz (and, through jazz, of pop and rock), so recognising a twelve-bar blues and the blues scale is a core skill.

The other great foundation is the ii-V-I progression, the most important chord sequence in jazz. It moves from the chord built on the second degree of the scale (ii, a minor seventh) to the chord on the fifth degree (V, a dominant seventh) to the tonic (I, a major seventh), and this strongly directed cadential progression - often chained through several keys - is the harmonic backbone of countless jazz standards. Jazz musicians think and improvise in terms of ii-V-I units, using them to navigate and to modulate. Recognising the ii-V-I, by ear and in a chord chart, is one of the most useful things you can learn about how jazz harmony works.

Modal jazz offered an alternative to this chord-based approach and is an important development to understand. Instead of improvising over fast-moving sequences of chords, modal jazz bases a piece on one or a few modes (scales) held for long stretches - a piece might stay on one mode for many bars before shifting to another. This frees the soloist from constantly 'running the changes' and creates a more open, spacious, less harmonically busy sound, shifting the interest from harmonic navigation to melodic and textural exploration within a mode. Recognising a static, mode-based harmony held for long spans - as opposed to a busy sequence of changing chords - identifies modal jazz and its distinctive aesthetic.

For the exam, describe jazz harmony precisely and relate it to style. Identify the chord types (extended and altered sevenths), recognise the structural sequences (the twelve-bar blues, the ii-V-I), hear the blues scale and blue notes, and distinguish chord-based from modal approaches. Then relate the harmony to the style - straightforward blues and swing harmony, bebop's fast and substituted changes, modal jazz's static modes, fusion's rock- and funk-influenced harmony. Because jazz harmony is both systematic (built on recognisable chords and sequences) and rich (extended, coloured, expressive), it is highly analysable, and its extended chords and blues basis provide a sharp contrast with classical functional harmony for the comparative essay.

Worked example

Recognising a twelve-bar blues by ear

An extract cycles a twelve-bar pattern: four bars feel like 'home', two move to a brighter chord and two return home, then a couple of bars feel like they pull strongly back before resolving, and the whole thing repeats. Identify and describe it.

Count the cycle
The pattern repeats every twelve bars, with successive choruses over the same harmony - the signature length of the twelve-bar blues.
Map the harmony
The 'home' bars are the tonic (I), the brighter move is to the subdominant (IV) and back to I, and the strongly pulling bars near the end are the dominant (V) resolving to I - the I-IV-V blues framework.
Hear the chord quality
The chords sound bluesy because they are often dominant sevenths throughout (not just plain triads), which gives the blues its characteristic colour.
Name it
This is a twelve-bar blues - a repeating twelve-bar I-IV-V (dominant-seventh) pattern - the foundational jazz and blues structure, over which the soloists improvise with the blues scale.

Result: The blues is identified by counting the twelve-bar cycle, mapping the I-IV-V framework, and hearing the dominant-seventh colour - recognising the structure and harmony that underpin so much jazz.

Typical mistakes

Reducing jazz harmony to simple triads and missing the extended sevenths, ninths and alterations that define its sound.
Not recognising the underlying structures (the twelve-bar blues, the ii-V-I) that musicians are improvising over.

Active revision

Write out a twelve-bar blues in a key of your choice using seventh chords, and separately write a ii-V-I in the same key; then find each pattern in a jazz recording and hear how the soloist navigates it.

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for music (Department for Education)

Improvisation and the rhythm section#

StandardAQA 7272 Area of study 5 (improvisation)DfE GCE Music subject content

The head-solos-head format

Fig. 3Most jazz follows a head-solos-head format: the tune, then improvised solos over the repeating chord changes, then the tune again - the framework analysis follows.

Improvisation - the spontaneous creation of music in performance - is the defining art of jazz, and understanding how it works structurally is essential to analysis. Most jazz performances follow a head-solos-head format: the ensemble first plays the head (the main tune, a fixed melody over the chord sequence), then each soloist in turn improvises one or more choruses over the repeating chord sequence, and finally the ensemble returns to play the head again to close. The chord sequence (and often the number of bars) stays constant throughout, so the improvised solos are new melodies invented over a familiar harmonic framework. Recognising this format - and following which chorus and which soloist you are hearing - lets you navigate a performance.

Improvisation is not random: it is creative variation within a framework, and skilled improvisers draw on the chord changes, scales and the tune. A soloist improvises melodies that fit the underlying chords (outlining or decorating the harmony), uses appropriate scales and blues notes, develops motifs, quotes and varies the tune, builds and releases tension across choruses, and responds to the other musicians. Understanding that a solo is shaped by the harmony it runs over - and often has its own shape and climax across several choruses - lets you analyse it as more than a stream of notes: you can describe how it relates to the changes and how it develops.

The rhythm section is the engine of a jazz group and its analysis is often overlooked but important. Typically comprising piano (or guitar), double bass and drums, it keeps time, states the harmony and provides the groove over which the soloists play. The bass usually 'walks' - playing a steady, mostly stepwise line of one note per beat that outlines the chords and drives the swing; the drums keep the swing feel (often on the ride cymbal) and add accents and responses; the piano or guitar 'comps' - playing chords in a flexible, syncopated, responsive way to support and interact with the soloist. The rhythm section does not merely accompany but interacts, so describing what each instrument does, and how they interact with the soloist, is part of a full analysis.

Interaction and the individual voice are central to jazz performance. Jazz prizes each musician's personal sound - a distinctive tone, articulation and expressive vocabulary (bends, slides, growls, vibrato) that make a player instantly recognisable - so timbre and expression are highly individual and worth describing. And jazz is conversational: musicians listen and respond to each other, the rhythm section reacting to the soloist, players 'trading' phrases (for example, trading fours - alternating four-bar improvised segments, often with the drummer), and the front line interacting. This live interaction is a large part of what makes a jazz performance exciting and is a distinctive feature to listen for and describe.

For the exam, analyse a jazz performance by following its structure and describing its improvisation and interaction. Identify the head-solos-head format and track the choruses and soloists; describe how a solo relates to the chord changes and how it develops; describe what each member of the rhythm section is doing (walking bass, swing drumming, comping) and how they interact with the soloist; and note the individual timbres and expressive techniques and any trading. Because jazz is improvised, performance-based and interactive, it contrasts strongly with the fixed, notated classical tradition - a contrast (spontaneity and interaction versus fixed composition) that makes a fertile subject for the comparative essay.

Worked example

Describing the rhythm section under a solo

Under a saxophone solo you hear a steady one-note-per-beat bass line, a swing ride-cymbal pattern with off-beat accents, and piano chords played in short, syncopated stabs. Describe what the rhythm section is doing.

Describe the bass
The steady, one-note-per-beat line that outlines the chords is a walking bass - it keeps time and states the harmony, driving the swing.
Describe the drums
The swing pattern on the ride cymbal keeps the swing feel, and the off-beat accents (on the snare or bass drum) add drive and respond to the soloist.
Describe the piano
The short, syncopated chord stabs are comping - flexible, responsive chordal support that fills the harmony and interacts with the solo rather than playing a fixed part.
Explain the interaction
Together the three lock the groove (bass and drums), state and colour the harmony (bass and piano) and interact with the soloist (drums and piano responding) - the engine and conversation partner of the solo.

Result: The rhythm section is analysed by describing each instrument's role - walking bass, swing drumming, comping - and their interaction with the soloist, showing how it drives and responds to the improvisation.

Typical mistakes

Hearing improvisation as random rather than as creative variation shaped by the underlying chord changes and structure.
Ignoring the rhythm section, whose walking bass, swing drumming and comping create the groove and interact with the soloist.

Active revision

Take one jazz recording and map its form: mark the head, each solo chorus and soloist, and the return of the head; then describe what the bass, drums and piano are each doing under one solo.

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for music (Department for Education)

Analysing jazz for the exam#

AdvancedAQA 7272 Area of study 5 (listening and analysis)DfE GCE Music subject content

Bringing the tools together, analysing jazz for the exam means hearing a performance as an improvised realisation of a shared structure and describing it precisely. A full analysis identifies the style and places it in the history of jazz, follows the structure (the head-solos-head format, the chord sequence, the choruses and soloists), describes the harmony (extended chords, the blues or ii-V-I, or a modal basis), the rhythm (the swing feel, syncopation), the improvisation (how a solo relates to the changes and develops), the rhythm section's roles and interaction, and the individual timbres and expressive techniques. As always, use precise technical terms and, where relevant, explain the effect.

Because jazz is studied through named artists across its history, stylistic awareness is part of the exam expectation. Knowing the styles and approaches of the artists in your specification - one's role in early jazz and the featured soloist, another's big-band composition and arrangement, another's modal innovation, a contemporary artist's eclectic style - lets you place an extract and comment on how it exemplifies its style and its place in the tradition. This does not mean memorising biographies; it means knowing the musical fingerprints of the studied artists and the main styles well enough to recognise and describe them.

The comparative essay is well served by jazz, whose improvised, performance-based, interactive nature contrasts sharply with the notated classical tradition and connects with the popular music areas. You might compare how jazz and classical music treat the performer's role (spontaneous improvisation versus faithful realisation of a fixed score), how each uses harmony (jazz's extended, blues-based chords versus classical functional harmony), how each uses rhythm (swing and syncopation versus classical metre), or how jazz and pop each build on the blues and groove. A comparison built on one such element, with specific evidence from each style, gives an essay a strong analytical spine.

A common weakness is to describe a jazz performance impressionistically ('a great solo', 'really swings') without the technical grounding. Guard against this by holding jazz to the analytical standard of any other music: name the style, the structure, the chords and scales, the rhythm-section roles and the expressive techniques; evidence every claim. Jazz is fully analysable in these terms, even though it is improvised - indeed, understanding the framework the musicians improvise over is what lets you analyse the freedom they exercise within it.

In summary, jazz rewards a candidate who can place a performance stylistically, follow its improvised structure, describe its harmony, rhythm, improvisation and rhythm-section interaction in technical language, and relate it to its artists and to the history of jazz, while judging what makes the performance effective. Its distinctive priorities - improvisation, swing, extended and blues-based harmony, and live interaction - both expand your analytical vocabulary and provide some of the sharpest contrasts available with the notated traditions. Study it as a living art of performance, and it becomes one of the most rewarding areas to appraise and to compare.

Worked example

Structuring a jazz-versus-classical comparison

An essay asks you to compare the role of the performer in jazz and in the classical tradition. How do you approach it?

Choose the comparative point
Organise the essay around one element - the performer's role - discussing jazz and classical music together rather than in turn.
State the essential contrast
In jazz the performer is a co-creator who improvises new music over a shared chord sequence, so the piece is different every time; in the classical tradition the performer realises a fixed, fully notated score faithfully, interpreting rather than inventing the notes.
Evidence both sides
Cite a specific improvised solo over a jazz standard's changes and a specific notated classical work whose notes are fixed, as concrete evidence for each.
Add nuance and judge
Acknowledge that classical performance still involves interpretation (tempo, dynamics, phrasing, and historically some improvisation such as cadenzas), then judge that the two traditions place the creative act differently - in the moment of performance for jazz, in the score for classical music.

Result: The comparison is built on one element (the performer's role) discussed across both traditions with specific evidence and a nuanced judgement - the thematic, evidenced structure a strong comparative essay needs.

Typical mistakes

Describing jazz impressionistically ('it swings', 'a great solo') without naming the style, structure, harmony, rhythm and techniques that evidence the claim.
Analysing a solo without reference to the chord changes and structure it is improvised over, which is what gives it shape and meaning.

Active revision

Plan (do not fully write) a comparison of the performer's role in jazz and in the classical tradition: state the essential contrast (improvisation over changes versus realising a fixed score) with one specific example from each.

Active recall

Recall the key points — then reveal.

Sources: AQA AS and A-level Music (7271 / 7272) specification (AQA)

References & sources

Sources

Department for Education

GCE AS and A level subject content for music

AQA

AQA AS and A-level Music (7271 / 7272) specification

Area of study 5: Jazz

5 sections~24 min reading time3 competenciesLevel Foundation 1 · Standard 3 · Advanced 1

Area of study 5: Jazz

Key points

Recognising a jazz style from its features

Key points

Distinguishing swing from bebop

Key points

Recognising a twelve-bar blues by ear

Key points

Describing the rhythm section under a solo

Key points

Structuring a jazz-versus-classical comparison

Sources

Area of study 5: Jazz

Key points

Recognising a jazz style from its features

Key points

Distinguishing swing from bebop

Key points

Recognising a twelve-bar blues by ear

Key points

Describing the rhythm section under a solo

Key points

Structuring a jazz-versus-classical comparison

Sources