The piano original was a study in pitch restriction; the first movement used only two notes, with each subsequent movement adding one additional pitch.
At its 1956 premiere in Budapest, the sixth movement was censored by the authorities for being too "dangerous" due to its dissonant minor seconds. The full work was not performed until 1969 in Sweden. Movement Guide ligeti 6 bagatelles for wind quintet imslp
For the wind quintet, Ligeti chose movements III, V, VII, VIII, IX, and X from the piano set, which correspond to pieces using four, six, eight, nine, ten, and eleven pitches respectively. The piano original was a study in pitch