The Keyboard Sonata in E Major, K. 380 (also catalogued as L. 23) was written by Domenico Scarlatti before 1749, but it wasn't publishe. The Keyboard Sonata, K. 380, was part of Casella's Scarlattiana, a 'divertimento based on Scarlatti's music for small orchestra and piano', premiered by the NY Symphonic Orchestra under Otto Klemperer in 1927.
