Blues: Ingredients, Form, and History

Blues as a Recipe: Core Concepts
  • Blues uses a recipe metaphor: ingredients (instruments, vocals, beats), process (interaction, dynamics), and a recurring form with improvisation.
  • Key elements include instrument choices, vocal color (bright/dark), inflection (emotional rise and fall), and blue notes (slightly lowered pitches).
  • Tempo and beat division contribute to the feel, while dynamics (soft/loud) and texture (thin/dense) define the sound.
The 12-Bar Form: Structure
  • The 12-bar form is a fundamental chord progression organizing blues songs.
  • It consists of 12 measures, typically using triad chords built on the I, IV, and V degrees of a key.
  • A common progression is:
    • Bars 1-4: II
    • Bars 5-6: IVIV
    • Bars 7-8: II
    • Bar 9: VV
    • Bar 10: IVIV
    • Bars 11-12: II
  • This structure provides a roadmap for improvisation while allowing for expressive freedom.
  • Lyrics often follow an AAB pattern: first line (A) repeated, followed by a contrasting line (B).
Interaction and Styles
  • Call-and-response is characteristic: vocals interact with instrumental lines.
  • Delta Blues (Mississippi Delta) features simpler instrumentation and a thinner texture, often intimate.
  • Chicago/Urban Blues evolved from Delta blues, adding more instruments (drums, bass, piano) and electric amplification for a denser, louder sound in city venues.
Notable Artists and Context
  • Gertrude Ma Rainey and Mamie Smith were pioneering female blues vocalists.
  • Muddy Waters was central to urban Chicago blues and signed with Chess Records, an independent label that promoted blues and R&B.
  • The "crossroad myth" about selling one's soul for musical prowess is associated with artists like Son House.
Assignment: "A Blues Recipe" Template
  • Create a personal blues recipe, detailing chosen instruments, lyrics, inflection, beats, and form.
  • Describe dynamic changes, texture, and how the 12-bar form (using I,IV,VI, IV, V) influences your recipe.
Quick Reference: Key Terms
  • 12-bar blues form: 12-measure structure using I,IV,VI, IV, V chords.
  • Triad chords: Built from a root, third, and fifth.
  • Roman numerals: I,IV,VI, IV, V denote chord degrees in a key.
  • Inflection: Nuanced pitch/emphasis for emotion.
  • Blue notes: Lowered pitches for a bluesy timbre.
  • Call-and-response: Musical dialogue between voice and instrument.
  • Texture: Density of sound (Thin: Delta; Thick: Chicago).