| 1 | ![Sonata No. 1 in D Minor, Op. 11: I. Allegro - Andante - Adagio by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 1 in D Minor, Op. 11: I. Allegro - Andante - Adagio | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 54 |
| 2 | ![Sonata No. 1 in D Minor, Op. 11: II. Andante by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 1 in D Minor, Op. 11: II. Andante | August Gottfried Ritter, Massimo Gabba | D Major | 10B | 67 |
| 3 | ![Sonata No. 1 in D Minor, Op. 11: III. Allegro - Adagio by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 1 in D Minor, Op. 11: III. Allegro - Adagio | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 70 |
| 4 | ![Sonata No. 1 in D Minor, Op. 11: IV. Andante con moto by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 1 in D Minor, Op. 11: IV. Andante con moto | August Gottfried Ritter, Massimo Gabba | F♯ Minor | 11A | 68 |
| 5 | ![Sonata No. 1 in D Minor, Op. 11: V. Allegro - Andante - Adagio by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 1 in D Minor, Op. 11: V. Allegro - Andante - Adagio | August Gottfried Ritter, Massimo Gabba | A Major | 11B | 81 |
| 6 | ![Sonata No. 2 in E Minor, Op. 19: I. Rasch und entschlossen by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 2 in E Minor, Op. 19: I. Rasch und entschlossen | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 171 |
| 7 | ![Sonata No. 2 in E Minor, Op. 19: II. Ruhige Bewegung - Lebhafter by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 2 in E Minor, Op. 19: II. Ruhige Bewegung - Lebhafter | August Gottfried Ritter, Massimo Gabba | E Minor | 9A | 136 |
| 8 | ![Sonata No. 2 in E Minor, Op. 19: III. Rasch und feurig - Ernst by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 2 in E Minor, Op. 19: III. Rasch und feurig - Ernst | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 80 |
| 9 | ![Sonata No. 3 in A Minor, Op. 23: I. Rasch by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: I. Rasch | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 88 |
| 10 | ![Sonata No. 3 in A Minor, Op. 23: II. Recit by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: II. Recit | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 133 |
| 11 | ![Sonata No. 3 in A Minor, Op. 23: III. Nicht schleppend by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: III. Nicht schleppend | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 73 |
| 12 | ![Sonata No. 3 in A Minor, Op. 23: IV. Rasch by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: IV. Rasch | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 134 |
| 13 | ![Sonata No. 3 in A Minor, Op. 23: V. Entschlossen by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: V. Entschlossen | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 88 |
| 14 | ![Sonata No. 3 in A Minor, Op. 23: VI. Rasch - Adagio by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 3 in A Minor, Op. 23: VI. Rasch - Adagio | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 98 |
| 15 | ![Sonata No. 4 in A Major, Op. 31: I. Ruhig und heiter by August Gottfried Ritter, Massimo Gabba]() | Sonata No. 4 in A Major, Op. 31: I. Ruhig und heiter | August Gottfried Ritter, Massimo Gabba | A Major | 11B | 75 |
| 16 | ![Sonata No. 4 in A Major, Op. 31: II. Theme]() | Sonata No. 4 in A Major, Op. 31: II. Theme "Het Wilhelmus" and Variations. Frisch und kräftig | August Gottfried Ritter, Massimo Gabba | A Major | 11B | 57 |
| 17 | ![Toccata in D Minor: I. Toccata. Allegro - Adagio - II. Fugue. Allegro by August Gottfried Ritter, Massimo Gabba]() | Toccata in D Minor: I. Toccata. Allegro - Adagio - II. Fugue. Allegro | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 67 |
| 18 | ![Three Preludes on Chorale Melodies, Op. 8: I. Aus tiefer Noth schrei ich zu dir by August Gottfried Ritter, Massimo Gabba]() | Three Preludes on Chorale Melodies, Op. 8: I. Aus tiefer Noth schrei ich zu dir | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 138 |
| 19 | ![Three Preludes on Chorale Melodies, Op. 8: II. Vater unser im Himmelreich by August Gottfried Ritter, Massimo Gabba]() | Three Preludes on Chorale Melodies, Op. 8: II. Vater unser im Himmelreich | August Gottfried Ritter, Massimo Gabba | D Minor | 7A | 64 |
| 20 | ![Three Preludes on Chorale Melodies, Op. 8: III. Heut triumphiret Gottes Sohn by August Gottfried Ritter, Massimo Gabba]() | Three Preludes on Chorale Melodies, Op. 8: III. Heut triumphiret Gottes Sohn | August Gottfried Ritter, Massimo Gabba | A Minor | 8A | 59 |
| 21 | ![Two Pieces: I. Adagio in A-Flat Major by August Gottfried Ritter, Massimo Gabba]() | Two Pieces: I. Adagio in A-Flat Major | August Gottfried Ritter, Massimo Gabba | A♭ Major | 4B | 80 |
| 22 | ![Two Pieces: II. Nachspiel in C Major by August Gottfried Ritter, Massimo Gabba]() | Two Pieces: II. Nachspiel in C Major | August Gottfried Ritter, Massimo Gabba | C Major | 8B | 70 |
| 23 | ![Two Chorale Preludes, Op. 38: VI. Den die Hirten lobten sehre by August Gottfried Ritter, Massimo Gabba]() | Two Chorale Preludes, Op. 38: VI. Den die Hirten lobten sehre | August Gottfried Ritter, Massimo Gabba | C Major | 8B | 77 |
| 24 | ![Two Chorale Preludes, Op. 38: XII. Geh aus, mein Herz, und suche Freud by August Gottfried Ritter, Massimo Gabba]() | Two Chorale Preludes, Op. 38: XII. Geh aus, mein Herz, und suche Freud | August Gottfried Ritter, Massimo Gabba | G Major | 9B | 73 |
| 25 | ![Fugue in B Minor (Allegro) by August Gottfried Ritter, Massimo Gabba]() | Fugue in B Minor (Allegro) | August Gottfried Ritter, Massimo Gabba | B Minor | 10A | 152 |
| 26 | ![Three Chorale Preludes, Op. 29: I. Ach bleib mit deiner Gnade by August Gottfried Ritter, Massimo Gabba]() | Three Chorale Preludes, Op. 29: I. Ach bleib mit deiner Gnade | August Gottfried Ritter, Massimo Gabba | G Major | 9B | 73 |
| 27 | ![Three Chorale Preludes, Op. 29: III. Auf meinen lieben Gott by August Gottfried Ritter, Massimo Gabba]() | Three Chorale Preludes, Op. 29: III. Auf meinen lieben Gott | August Gottfried Ritter, Massimo Gabba | E Minor | 9A | 140 |
| 28 | ![Three Chorale Preludes, Op. 29: XI. Jesu, meine Zuversicht by August Gottfried Ritter, Massimo Gabba]() | Three Chorale Preludes, Op. 29: XI. Jesu, meine Zuversicht | August Gottfried Ritter, Massimo Gabba | B♭ Major | 6B | 77 |
| 29 | ![Fugue in B Major]() | Fugue in B Major "After Handel" (Allegro moderato) | August Gottfried Ritter, Massimo Gabba | B♭ Major | 6B | 76 |
| 30 | ![Three Large Chorale Preludes, Op. 9: I. Helft mir Gott's Güte preisen by August Gottfried Ritter, Massimo Gabba]() | Three Large Chorale Preludes, Op. 9: I. Helft mir Gott's Güte preisen | August Gottfried Ritter, Massimo Gabba | G Minor | 6A | 67 |
| 31 | ![Three Large Chorale Preludes, Op. 9: II. Jesu, meine Freude by August Gottfried Ritter, Massimo Gabba]() | Three Large Chorale Preludes, Op. 9: II. Jesu, meine Freude | August Gottfried Ritter, Massimo Gabba | C Minor | 5A | 90 |
| 32 | ![Three Large Chorale Preludes, Op. 9: III. Gib dich zufrieden und sei stille by August Gottfried Ritter, Massimo Gabba]() | Three Large Chorale Preludes, Op. 9: III. Gib dich zufrieden und sei stille | August Gottfried Ritter, Massimo Gabba | C Minor | 5A | 77 |
| 33 | ![Fugue in C Minor (Allegro) by August Gottfried Ritter, Massimo Gabba]() | Fugue in C Minor (Allegro) | August Gottfried Ritter, Massimo Gabba | C Minor | 5A | 58 |
| 34 | ![Chorale]() | Chorale "Auf, auf, mein Herz, mit Freunden" | August Gottfried Ritter, Massimo Gabba | E♭ Major | 5B | 65 |
| 35 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": I. Tema | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 67 |
| 36 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": II. Variation 1 | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 66 |
| 37 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": III. Variation 2 | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 75 |
| 38 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": IV. Variation 3 | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 71 |
| 39 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": V. Variation 4 | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 95 |
| 40 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": VI. Variation 5 | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 69 |
| 41 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": VII. Variation 6 | August Gottfried Ritter, Massimo Gabba | E Minor | 9A | 70 |
| 42 | ![Variations, Op. 1]() | Variations, Op. 1 "Heil dir im Siegerkranz!": VIII. Finale. Allegro – Meno allegro – Allegro | August Gottfried Ritter, Massimo Gabba | E Major | 12B | 78 |