🎼 Diminished Chart 12-Tone Parallel Key Table
This table showcases the full chromatic set of major and minor keys, grouped by diminished seventh cycles. Each section maintains internal vertical alignment of accidentals, revealing elegant symmetry across parallel key relationships.
Use this structure to explore tonal shifts, compose motifs in parallel keys, or trace the evolution of accidentals. Try composing short pieces using only keys from one cycle, or challenge yourself to modulate between cycles while preserving tonic integrity.
🔷 Cycle 1: C – E♭ – G♭ – A
| Major Key | # Accidentals | Minor Key | # Accidentals |
|---|---|---|---|
| C Major | 0 | C Minor | 3 flats |
| A Minor | 0 | A Major | 3 sharps |
| G♭ Major | 6 flats | F♯ Minor | 3 sharps |
| E♭ Minor | 6 flats | E♭ Major | 3 flats |
🔷 Cycle 2: D♭ – E – G – B♭
| Major Key | # Accidentals | Minor Key | # Accidentals |
|---|---|---|---|
| D♭ Major | 5 flats | C♯ Minor | 4 sharps |
| E Minor | 1 sharp | E Major | 4 sharps |
| G Major | 1 sharp | G Minor | 2 flats |
| B♭ Minor | 5 flats | B♭ Major | 2 flats |
🔷 Cycle 3: D – F – A♭ – B
| Major Key | # Accidentals | Minor Key | # Accidentals |
|---|---|---|---|
| D Major | 2 sharps | D Minor | 1 flat |
| F Minor | 4 flats | F Major | 1 flat |
| A♭ Major | 4 flats | G♯ Minor | 5 sharps |
| B Major | 5 sharps | B Minor | 2 sharps |
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