Jazz Form, Texture, Blues, and Historical Context (Take the A Train and Related Topics)

Take the A Train: Form, Timbre, and Texture

The lecturer discusses three possible descriptors for what you hear in a phrase: repetition, variation, or contrast. He emphasizes listening carefully to identify which description fits each phrase.
The 2nd phrase is introduced as a repetition with slight variation from the 1st phrase: essentially a repetition with small differences.
The structure of the tune is explained as a 32-bar form with an AABA pattern. The phrases observed so far are: A A B A.
The example given is Duke Ellington’s theme song Take the A Train. Ellington wrote hundreds of works, but his theme song was written by his collaborator Billy Strayhorn in 1939. Note the historical detail: Ellington was active around 1939, and the collaboration with Strayhorn was pivotal for many Ellington classics.
The form is widely shared among popular music and jazz tunes, illustrating the universality of the AABA 32-bar structure.

Timbre and Principal Melodies

The question posed: which instrument(s) carry the principal melody? The audience answers include saxophones, piano, trumpet.
In this arrangement, the principal melody is played by four saxophones, all in unison. The saxophones are responsible for delivering the main melodic line.
There is also a second melody: a counter melody performed by other voices (referred to in the transcript as a horn section—likely cornets/trumpets). This secondary melody is active when the principal melody rests or pauses.
A third melody is contributed by the trombones, providing a contrasting line to both the primary sax melody and the counter melody.
The overall texture is polyphonic: three simultaneous melodies happening at once (primary by saxes, counter melody by the other horns, and a third line by trombones).
The narrator notes this texture as something listeners can hear without formal music training, highlighting the interplay of multiple melodic lines within the arrangement.
The term polyphony is used to describe this texture (poly = many, p h ony = sounds).

Purpose of This Textural Design

The arranger/composer uses multiple simultaneous melodies to add texture, character, and interest, not simply to overwhelm the listener.
The idea of musical architecture is introduced: an analogy to an architectural design where different melodic lines create a coherent structure.
The potential downside of too many lines is acknowledged: more than three simultaneous melodies might become too complex or chaotic for the ear.
Callouts about listener experience emphasize that you don’t need formal music training to perceive and appreciate the texture.

The Bass, Rhythm, and Walking Bass

The bass line is a walking bass, a hallmark of early jazz and still common today.
The bass outlines the harmonic progression while providing the rhythmic foundation:
- Bar 1: C major chord (C major scale notes emphasized)
- Bar 2: D7 chord
- Bar 3: D minor chord
- Bar 4: G7 chord
The bass plays on every beat, creating a melodic line that follows chord changes, thereby outlining harmony in addition to providing rhythm.
The bass and the drums work together to establish the groove, but the bass has a distinctive role in outlining harmony, not merely keeping time.

Tempo and Meter: How Fast Is It?

The tempo is characterized as moderate (medium tempo).
Discussion of how tempo is determined:
- Beats per minute (BPM) is a common gauge for tempo, but the speaker emphasizes that metrical organization (meter) is not the same as tempo.
- Meter is described with a 4/4 feel: four beats per measure with a steady pulse.
Physiological and psychological factors influence our perception of tempo:
- Moderate tempos often align with typical heart rate ranges; dancers historically favored moderate tempos around 80–100 BPM, though a broader range (approximately 60–130 BPM) is discussed as moderate depending on context.
- Extreme tempos: under 60 BPM is often slow; over 180 BPM is considered fast (subject to individual interpretation).
A clapped count demonstrates the 4-beat structure: “One two three four. One two three four.”
The metrical organization (the four beats per measure) is separate from tempo (speed of those beats).

Second Chorus: Solo, Soli, and Call-and-Response

The second chorus marks a departure from the saxophones playing the primary melody.
The trombones drop out for a moment; a muted trumpet takes a solo, improvising through the form.
The saxophones shift from the primary melody to a written soli: a prepared, ensemble saxophone passage with a new melodic and rhythmic character.
The relation between the soloist and the ensemble is call-and-response: the horn section responds to and engages with the trumpet solo through stated melodies and rhythmic interactions.
The soli by the saxophones is rhythmically and melodically distinct from the trumpeter’s improvisation, yet it supports and interacts with the solo line.
The architectural idea persists: even during a solo, the accompaniment provides a structured, deliberate backdrop to maintain listener engagement.

Jazz Roots: The Blues Form, Call-and-Response, and African Influences

The discussion moves to Bessie Smith’s Lost Your Head Blues, illustrating a classic blues form.
Blues form: 12 measures, three phrases, with the pattern A A B (three phrases, each four measures long): ext{Form} = A A B, ext{ Measures}=12, ext{ Phrases}=3, ext{ Measures per phrase}=4.
In this blues example, there is a call-and-response relationship between the vocal line and the trumpet (a response that completes or echoes the phrase).
The storyteller’s structure is described as dialectical: the first two phrases pose a question or problem (A phrases), and the third phrase provides the answer or resolution (B phrase).
The critic Robert Palmer coined the term dialectic to describe this internal dialogue within blues lyrics and phrasing, highlighting the social and expressive dimension of the blues.
The blues is discussed as a counter-narrative to minstrel stereotypes, representing an authentic African American storytelling and musical practice.
The piece is described as a 12-bar blues, reinforcing the broader historical path from secular song traditions to the blues.

African Roots and European Influences in Jazz

Jazz emerges from the meeting of two major cultural streams: African rhythmic and ritual traditions and European harmonic practices.
African influence focuses on rhythm, improvisation, and ritual aspects of music-making; European influence contributes harmony and organized pitch systems.
West African drum traditions, including Congo Square in New Orleans, played a crucial role in preserving and transforming rhythmic ideas within the American context.
The bell rhythm (a steady high-pitched pattern) in African drumming, combined with lower and middle rhythmic layers, informs the improvisational approach in jazz.
Rituals serve social and communal purposes, providing identity and resilience in the face of environmental and social pressures.

Wynton Marsalis on African Rhythms and Jazz

Wynton Marsalis, a prominent jazz figure and educator, has delivered lectures at Harvard about African rhythmic influences on jazz.
Congo Square in New Orleans is highlighted as a site where enslaved Africans could maintain drum traditions, influencing jazz’s rhythmic backbone.
The improvisational architecture in jazz often involves high, middle, and low rhythmic layers that allow for call-and-response interactions within a performance.
A demonstration contrasts West African rhythm with Americanized jazz rhythms, showing how a bell rhythm can coexist with improvisation and how the odd/even rhythmic tension shapes the feel.
A comparison is drawn between African rhythm and the Western concept of a shuffle: the African six (triplet-based feel), six-eight, and the later shuffle rhythm illustrate the evolution of feel in American music.

Pre-Blues Secular Traditions and Their Legacy

The discussion touches on earlier secular traditions that laid groundwork for the blues, including field hollers and work songs.
Field hollers: characterized by fluid pitch and melodic ornamentation; less emphasis on a strict rhythmic pulse, more on expressive inflection.
Work songs: organized around repetitive rhythms with a pentatonic melodic basis; clear call-and-response structure between singer and chorus; a more pronounced rhythmic backbone.
These traditions contributed to the development of the blues and ultimately jazz, illustrating the continuum from secular work songs to the blues to jazz.

August Wilson, The Piano Lesson, and Burda

August Wilson is introduced as a major African American playwright who wrote about the Black experience across the 20th century (e.g., Fences, Ma Rainey’s Black Bottom, The Piano Lesson).
The Piano Lesson (a play by Wilson) includes Burda, a traditional work song from the early 20th century, as part of its narrative and musical texture.
Burda is used to illustrate how work songs function within a broader cultural and political context, as well as to connect music to storytelling and social commentary.
The discussion ties these literary works to musical forms and historical context, showing how art across disciplines intersects with music history.

Historical and Political Context: Civil War, Reconstruction, and Civil Rights()

The end of the Civil War: 1865; Reconstruction period followed, attempting to integrate formerly enslaved people into civic life.
Black codes emerged in the post-Reconstruction era, restricting African American rights and attempting to control labor, mirroring older slave codes.
The 13th, 14th, and 15th Amendments are discussed in shorthand:
- 13th Amendment: Abolition of slavery.
- 14th Amendment: Citizenship and equal protection under the law.
- 15th Amendment: Voting rights for formerly enslaved men.
Plessy v. Ferguson (1896) is examined in detail:
- Homer Adolf Plessy, who was one-eighth Black, challenged segregated seating on trains because of Louisiana’s one-drop rule.
- The Supreme Court upheld the doctrine of separate but equal, legitimizing segregation for decades across public facilities, including trains, schools, theaters, hotels, etc.
- The impact of Plessy stretched into the mid-20th century until Brown v. Board of Education (1954) began the formal dismantling of legal segregation.

Additional Context: Historical Materials and Ethics

The historical context includes references to social and political oppression, such as the practice of forced labor under Black Codes and the prison labor system discussed in relation to the Thirteenth Amendment’s loopholes.
The lecturer connects these ideas to cultural products (music, plays, films) that reflect and challenge oppression, highlighting the ethical and cultural significance of studying these histories.

Practical Takeaways and Study Points

Recognize the form of popular jazz tunes: 32-bar AABA form, with an emphasis on how phrasing (A, A, B, A) organizes the tune over 32 measures.
Understand texture in jazz: multiple simultaneous melodies (polyphony) and how a principal melody can be supported by counter-melody and third-voice lines.
Distinguish between a walking bass and other bass roles: the bass outlines harmonic progressions by emphasizing chord tones on each beat, creating a sustained rhythmic and harmonic drive.
Differentiate blues forms from other forms: 12-bar blues with three phrases (A A B) and the typical call-and-response between voice and instrument.
Appreciate the African and European influences in jazz: rhythmic improvisation and ritual (African) combined with harmonic organization (European) to create jazz.
Connect music to social history: references to Congo Square, field hollers, work songs, Burda, and the impact of Black Codes, Reconstruction, and Plessy on the cultural landscape.
Understand why composers use architectural thinking in arranging (texture, balance, and order) and when too many lines may overwhelm the ear.
Be aware of critical perspectives on race and music history, including works by August Wilson and the cultural articulation of blues as a counter-narrative to minstrel traditions.

Quick Reference Formulas and Time Concepts

Blues form (12-bar): ext{Form} = A A B, ext{ Measures}=12, ext{ Phrases}=3, ext{ Measures per phrase}=4.
Popular tune form (32-bar): A hinspace A hinspace B hinspace A ext{ (32 bars)}.
Meter: ext{Time signature} = rac{4}{4}.
Tempo ranges (typical): 60 ext{ BPM} < ext{Tempo} \le 180 ext{ BPM} ext{ with moderate commonly around } 80 ext{–}120 ext{ BPM}.
Walking bass outline (example):
- Bar 1: chord C major (I) notes emphasized
- Bar 2: chord D7 (II7 or V of V depending on context)
- Bar 3: chord D minor (ii or vi depending on progression)
- Bar 4: chord G7 (V7 of C)
Rhythmic feel examples: African six, six-eight, and the shuffle rhythm as evolutionary pathways in American jazz rhythm.