10Sonatas and Interludes for Prepared Piano: Interlude No. 2
11Sonatas and Interludes for Prepared Piano: Interlude No. 3
12Sonatas and Interludes for Prepared Piano: Sonata No. 9
13Sonatas and Interludes for Prepared Piano: Sonata No. 10
14Sonatas and Interludes for Prepared Piano: Sonata No. 11
15Sonatas and Interludes for Prepared Piano: Sonata No. 12
16Sonatas and Interludes for Prepared Piano: Interlude No. 4
17Sonatas and Interludes for Prepared Piano: Sonata No. 13
18Sonatas and Interludes for Prepared Piano: Sonata No. 14 and 15, "Gemini - After the Work by Richard Lippold"
19Sonatas and Interludes for Prepared Piano: Sonata No. 15
20Sonatas and Interludes for Prepared Piano: Sonata No. 16
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