Mozart Piano trios Piano Trio No. 1 – Divertimento à 3 in B-flat major for Piano, Violin and Violoncello, K. 254 (1776) Piano Trio No. 2 – Trio (Sonata) in G major for Piano, Violin and Violoncello, K. 496 (1786) Piano Trio No. 3 – Trio in B-flat major for Piano, Violin and Violoncello, K. 502 (1786) Piano Trio No. 4 – Trio in E major for Piano, Violin and Violoncell..