Form Diagrams

Binary Form

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Binary Form:

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  • Binary form can describe a whole movement or a portion of a large unit.
  • Rounded binary form: return of A1 or A1 + A2 in B2 (forerunner of the sonata-Allegro form).
  • Balanced binary form or binary with cadence rhyme: return of A2 in B2.

Rounded Binary Form

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Ternary Form

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Ternary Form (typical tonal structures):

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(Coda)

  • Each section is tonally closed.
  • There is thematic contrast between A and B.
  • Compound ternary form: e.g., minuet & trio or scherzo & trio. Each large section (minuet, trio) is itself some form of binary or ternary design.
  • The Ternary principle is the basis for the rondo form.

Compound Form

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