D♭ (musical note)
D♭ (also called a re bémol) is the first note of the D♭ major scale.
Designation by octave
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) |
|---|---|---|---|
| D♭−1 | D♭͵͵͵ or ͵͵͵D♭ or DDDD♭ | Subsubcontra | 8.662 |
| D♭0 | D♭͵͵ or ͵͵D♭ or DDD♭ | Subcontra | 17.324 |
| D♭1 | D♭͵ or ͵D♭ or DD♭ | Contra | 34.648 |
| D♭2 | D♭ | Great | 69.296 |
| D♭3 | d♭ | Small | 138.591 |
| D♭4 | d♭′ | One-lined | 277.183 |
| D♭5 | d♭′′ | Two-lined | 554.365 |
| D♭6 | d♭′′′ | Three-lined | 1108.731 |
| D♭7 | d♭′′′′ | Four-lined | 2217.461 |
| D♭8 | d♭′′′′′ | Five-lined | 4434.922 |
| D♭9 | d♭′′′′′′ | Six-lined | 8869.844 |
| D♭10 | d♭′′′′′′′ | Seven-lined | 17739.688 |
Common scales beginning on D♭
- D♭ Major: D♭ E♭ F G♭ A♭ B♭ C D♭
- D♭ Natural Minor: D♭ E♭ F♭ G♭ A♭ B
C♭ D♭ - D♭ Harmonic Minor: D♭ E♭ F♭ G♭ A♭ B C D♭
- D♭ Melodic Minor Ascending: D♭ E♭ F♭ G♭ A♭ B♭ C D♭
- D♭ Melodic Minor Descending: D♭ C♭ B A♭ G♭ F♭ E♭ D♭
