Nikolai Rubinstein
Pyotr Ilyich Tchaikovsky's Trio in A minor, Op. 50, was written in Rome between December 1881 and late January 1882. It is subtitled [In memory of a great artist], in reference to Nikolai Rubinstein, his close friend and mentor, who had died on 23 March 1881. It is scored for piano, violin, and cello.