Besides "Winter Wind" and  "Tristesse," another of these was written in honor of the November Uprising in the composer's home country.  
Robert Schumann compared one of these pieces to "the song of a sleeping child," though its rhythms and nickname evoke the title insects in flight, and in one of these the right hand plays exclusively in pentatonic except for a single F natural. Charles A. Hoffman suggested adding an extra four bars to introduce the melody at the beginning of the longest of these, and Leopold Godowsky made a transcription of the first of these for one hand, while the last of these were not given an opus number and are thus called the "Three New" ones. Of the third of these, the composer stated that in all his life he had never been able to find such a beautiful melody. Besides "Winter Wind" and  "Tristesse," another of these was written in honor of the November Uprising in the composer's home country.  For 10 points, identify these piano exercises by a Polish Composer, the most famous of which is perhaps the "Revolutionary" one.
Robert Schumann compared one of these pieces to "the song of a sleeping child," though its rhythms and nickname evoke the title insects in flight, and in one of these the right hand plays exclusively in pentatonic except for a single F natural.
{etudes} of Frederic {Chopin}