A♯ / B♭ Diminished 7th
A#dim7
Extremely tense. Symmetrical — repeats every 3 semitones.
🔊 Listen
Piano Keyboard
Guitar Fretboard
Intervals
| Interval | Semitones | Note |
|---|---|---|
| R | 0 | A♯ / B♭ |
| m3 | 3 | C♯ / D♭ |
| TT | 6 | E |
| M6 | 9 | G |
A#dim7
Extremely tense. Symmetrical — repeats every 3 semitones.
| Interval | Semitones | Note |
|---|---|---|
| R | 0 | A♯ / B♭ |
| m3 | 3 | C♯ / D♭ |
| TT | 6 | E |
| M6 | 9 | G |