8Sonatas and Interludes for Prepared Piano: Sonata VII
9Sonatas and Interludes for Prepared Piano: Sonata VIII
10Sonatas and Interludes for Prepared Piano: Second Interlude
11Sonatas and Interludes for Prepared Piano: Third Interlude
12Sonatas and Interludes for Prepared Piano: Sonata IX
13Sonatas and Interludes for Prepared Piano: Sonata X
14Sonatas and Interludes for Prepared Piano: Sonata XI
15Sonatas and Interludes for Prepared Piano: Sonata XII
16Sonatas and Interludes for Prepared Piano: Fourth Interlude
17Sonatas and Interludes for Prepared Piano: Sonata XIII
18Sonatas and Interludes for Prepared Piano: Sonatas XIV and XV
19Sonatas and Interludes for Prepared Piano: Sonata XVI
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