Mozart's four sonatas for one piano, four hands, are the first important works in the piano duet literature. This carefully researched edition contains historical information, in-depth notes on performing Mozart's piano music, editorial fingering and metronome marks, as well as realizations of many ornaments. Titles: Sonata in D Major, K. 381 (123a) * Sonata in B-flat Major, K. 358 (186c) * Sonata in F Major, K. 497 * Sonata in C Major, K. 521.