Piano Sonata Hob. XVI/38

The Sonata in E-flat major (Hob. XVI/38, L. 51) is a keyboard sonata composed by Joseph Haydn, also referred to as a piano sonata. The three-movement work was published by Artaria in 1780 in a set of six sonatas dedicated to the sisters Katharina and Marianna Auenbrugger.^[1]

Keyboard Sonata
by Joseph Haydn
Key	E-flat major
Catalogue	Hob. XVI/38 L. 51
Genre	Sonata
Style	Classical
Dedication	Katharina and Marianna Auenbrugger
Published	1780 (1780)
Movements	3
Scoring	Keyboard

The sonata has three movements:

1. Allegro moderato (E-flat major)
2. Adagio (C minor)
3. Finale: Allegro (E-flat major)

The first movement is in sonata form. It is monothematic, in that the movement only presents and significantly develops one distinct theme.^[2]

The second movement is a siciliana. The third is in da capo form, akin to a minuet and trio.^[1][3] The two movements are linked by an attacca direction: the second movement has an open ending on a G-major chord; the third movement follows immediately, and that chord becomes the submediant triad (with raised third) of the new movement's key of E-flat major.^[4]