12For Prepared Piano (1951): I.
3For Prepared Piano (1951): II.
4For Prepared Piano (1951): III.
5For Prepared Piano (1951): IV.
678For Piano II (1953): III.
910For Piano With Preparations (1957): I.
11For Piano With Preparations (1957): II.
12For Piano With Preparations (1957): III.
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