Valse-Scherzo, Op. 7
The Valse-Scherzo  in A major for solo piano, Op. 7 (TH 129 ; ČW 105), was written at the beginning of 1870 in Moscow. It should not to be confused with the later Valse-Scherzo in the same key, dating from 1889.
Movements and Duration
There is one movement (A major, 306 bars), without a tempo marking. A complete performance lasts around 4 to 5 minutes.
The only information concerning the composition of this work is found in a letter of 5/18 February 1870 from Tchaikovsky to his sister Aleksandra Davydova: "This past winter I have been quite busy as a composer. Three days ago I sent two piano pieces to be printed , one of which is dedicated to you. As soon as it comes out, I shall send you a copy straight away" .
The work is dedicated to the composer's younger sister, Aleksandra Davydova.