The first movement, 107 bars long and in common time, begins with a strong triple-playing of a C major chord. In typical sonata form, the work presents its main theme, and develops upon it. Toward the middle section (bar 40), the work drops down in tone to a darker, more ominous version of the main theme, before picking back up to the light C major chord.

Date of composition 1765
Type Sonata
Tonality C Major
Catalogue KV 19d
Instruments Piano - Duet ;
Autotranslations beta Wolfgang Amadeus Mozart: Sonata for keyboard four-hands en do majeur, KV 19d "Sonata for Piano four-hands in C Major"
Wolfgang Amadeus Mozart: Sonata for keyboard four-hands in do maggiore, KV 19d "Sonata for Piano four-hands in C Major"
Wolfgang Amadeus Mozart: Sonata for keyboard four-hands C-dur, KV 19d "Sonata for Piano four-hands in C Major"