Sonatas and Interludes - for prepared piano (1946-48): XI.

1 Klavierstück IX. (1954)
2 Son Et Lumiére - For Piano (1980)
3 Piano Piece No.7 Op.30b/1 (1978)
4 Sonatas and Interludes - for prepared piano (1946-48): V.
5 Sonatas and Interludes - for prepared piano (1946-48): XIII.
6 Sonatas and Interludes - for prepared piano (1946-48): XI.
7 Sonatas and Interludes - for prepared piano (1946-48): XIV-XV. "Gemini" - after the work by Richard Lippold
8 Mists - For Piano (1980)