'Six Pieces' Op. 19 is the first collection of piano pieces by Tchaikovsky which contributed significantly to his growing renown as most important Russian composer apart from Anton Rubinstein. Famous contemporary pianists like Nikolai Rubinstein and Hans von Bülow performed Rêverie du soir (Op. 19, No. 1) or Thème original et variations (No. 6) in their concerts in the 1870s. Commissioned by his Moscow publisher P. I. Jurgenson, Six Pieces Op. 19 was composed by Tchaikovsky in the summer and aut...