This fourth piece is built out of only perfect fifth intervals, played simultaneously in the right or left hand. On the piano, the perfect fourth interval is 7 notes apart.
Succession of fifths immediately recalls the sound of horns, even when played on the percussive piano instrument. This piece cannot help but have a sort of retrospective midieval sound, although with a contemporary attitude.
This composer loves the sounds of fifths. Perhaps that enthusiasm shows in this piece.
