MusicianCV · TR

Twelve-bar blues

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Form and flow

Twelve-bar blues · I I I I / IV IV I I / V IV I V → 4 + 4 + 4

Letters represent musical sections. A returning letter signals recognisable material. Introductions and transitions can prepare sectional boundaries.

Example

Formal route / short plan · I I I I / IV IV I I / V IV I V / 4 + 4 + 4

Formal route / short plan

I I I I / IV IV I I / V IV I V 4 + 4 + 4

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How can the arrangement reveal the sectional boundaries?

AnswerAt each entry, note changes in bass, texture or melody. Do not assign letters solely from bar counts.

Related topics

Harmonic rhythm: when chords change

References

Music Theory for the 21st-Century Classroom · Further reading

Subject-expert review pending.