1 | | Preludes in Quarter-Tone System: I | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | B♭ Minor | 3A | 137 |
2 | | Preludes in Quarter-Tone System: IV | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | F♯ Major | 2B | 148 |
3 | | Preludes in Quarter-Tone System: V | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | B♭ Minor | 3A | 77 |
4 | | Preludes in Quarter-Tone System: VIII | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | E Minor | 9A | 103 |
5 | | Preludes in Quarter-Tone System: IX | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | D Major | 10B | 136 |
6 | | Preludes in Quarter-Tone System: XIV | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | A♭ Major | 4B | 72 |
7 | | Preludes in Quarter-Tone System: XVII | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | A Major | 11B | 119 |
8 | | Preludes in Quarter-Tone System: XVIII | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | D♭ Minor | 12A | 79 |
9 | | Preludes in Quarter-Tone System: XX | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | B♭ Minor | 3A | 148 |
10 | | Preludes in Quarter-Tone System: XXI | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | F♯ Minor | 11A | 68 |
11 | | Preludes in Quarter-Tone System: XXIII | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | A♭ Major | 4B | 165 |
12 | | Preludes in Quarter-Tone System: XXIV | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | D♭ Major | 3B | 68 |
13 | | Three Quarter-Tone Pieces for Two Pianos: Largo | Charles Ives, Josef Christof, Steffen Schleiermacher | A Minor | 8A | 132 |
14 | | Three Quarter-Tone Pieces for Two Pianos: Allegro | Charles Ives, Josef Christof, Steffen Schleiermacher | B♭ Major | 6B | 104 |
15 | | Three Quarter-Tone Pieces for Two Pianos: Chorale | Charles Ives, Josef Christof, Steffen Schleiermacher | G Major | 9B | 70 |
16 | | Three Page Sonata | Charles Ives, Josef Christof, Steffen Schleiermacher | F♯ Major | 2B | 65 |
17 | | Étude sur le 'Carré Magique Sonore', Op. 40 | Ivan Wyschnegradsky, Josef Christof, Steffen Schleiermacher | C Major | 8B | 75 |