The characteristic rhythm of this 3/4 dance is one eighth note, two sixteenth notes, then four eighth notes.
One work in this genre opens with an E-flat in octaves, and then has the pianist play rapid ascending chromatic fourths in the right hand. In the middle section of that work in this genre, the left hand repeatedly plays E, D-sharp, C-sharp, B in octaves. The characteristic rhythm of this 3/4 dance is one eighth note, two sixteenth notes, then four eighth notes. One work in this genre was originally paired with an "Andante (*) spianato." An A-flat major work in this genre has a middle section that supposedly depicts a cavalry charge. They're not Impromptus, but Chopin's last one of these works is a "Fantaisie" one. Chopin's works in this genre have nicknames like "Military" and "Heroic." For 10 points, what dance has a name literally meaning "Polish?"
One work in this genre opens with an E-flat in octaves, and then has the pianist play rapid ascending chromatic fourths in the right hand.
polonaises [accept polaccas; accept answers like "grande polonaise brilliante"]