Violin Sonata No. 19 in E-flat major (K. 302/293b) was composed by Wolfgang Amadeus Mozart in March 1778 in Mannheim, Germany and was first published in the same year as part of Mozart's Opus 1 collection, which was dedicated to Maria Elisabeth, Electress of the Palatinate and are consequently known as the Palatine Sonatas.
The work consists of two movements: