'''Waltz Op. 69, No. 2''' was composed by Frédéric Chopin for solo piano in the year 1829, although published posthumously. The main theme is in the key of B minor and is marked with an overall tempo of ''Moderato''. It is one of several works that the composer hoped would be burnt upon his death.http://www.classicalarchives.com/work/7238.html#about
The piece is largely melancholic and changes to B major and again reverts to the original theme. It is not technically demanding and is one of Chopin's better known pieces.