Composed in 1914. The indication means "furiously." The fragmentary and abrupt shifts in gesture in the first half, the melodic lines with wide intervallic leaps, and the restless hand changes within voices required of the pianist create a dramatic and vivid impression. The latter half of the piece is based on intense and persistent chord repetitions, and gradually subsides while maintaining the striking sonic image of the first half. After the tempo and dynamics settle, the melody from the first half is briefly recapitulated in the high register before concluding.