1

Preludes In Quarter-Tone System, I

2

Preludes In Quarter-Tone System, IV

3

Preludes In Quarter-Tone System, V

4

VIII

5

IX

6

Preludes In Quarter-Tone System, XIV

7

Preludes In Quarter-Tone System, XVII

8

Preludes In Quarter-Tone System, XVIII

9

Preludes In Quarter-Tone System, XX

10

Preludes In Quarter-Tone System, XXI

11

Preludes In Quarter-Tone System, XXIII

12

Preludes In Quarter-Tone System, XXIV

13

Three Quarter-Tone Pieces For Two Pianos, Largo

14

Three Quarter-Tone Pieces For Two Pianos, Allegro

15

Three Quarter-Tone Pieces For Two Pianos, Chorale

16

Three Page Sonata

17

Étude Sur Le 'carré Magique Sonore', Op. 40