Ternary Form (ABA form)	Theory Things   William Wieland
Sectional or Closed Ternary (A ends on tonic.)	Examples: “Twinkle, Twinkle Little Star” “Still, Still, Still” (Austrian Christmas Lullaby) Schumann “Humming Song” from Album for the Young op. 68 no. 3
Both A B A and A B A' are common. Da capo arias are in ternary form. Sectional or Closed Ternary — A begins and ends in tonic. Continuous or Open Ternary — The first A section does not end on tonic. B often ends on V. B contrasts with A melodically, harmonically and/or texturally. B may develop motives or themes from A. Repeat signs may occur, frequently   ||: A :||: B   A :|| Though A A' A'' and A B C each include three sections, A A' A'' features no contrasting middle section and A B C does not recapitulate the opening material. Compound ternary is a three-part form in which each section is itself a binary or ternary form. Common examples include Minuet and Trio or Scherzo and Trio movements.