Binary Variants of Early Classic Sonata Form

The Development‐Ending Dominant and the Late Cadence in vi: Changing Norms in the Sonatas of Haydn, Mozart and Beethoven

“…353–87, call ‘Type 2’ sonatas, since their recapitulations all begin with thematic material stated at the outset of their expositions. By the same token, sonatas with dominant‐governed developments might qualify as what Prout () – and then Longyear () – dubbed ‘abridged’ sonata form, though not what Longyear () called ‘binary’ sonata form.…”

“…Although Rosen never states outright that the late cadence in vi originates from the binary, the aria or the concerto, he argues that the sonatas of the mid‐ to late‐eighteenth century are outgrowths or close relatives of these other forms. Moreover, the evolution of sonata form from binary form has been well documented (Kirkpatrick , p. 251–79), as have many ‘binary variants’ of the sonata that were prevalent around 1740–80 (Longyear ). Some of these binary variants are subsumed by Hepokoski and Darcy's () Type 2 sonata category.…”