D (musical note)
D or Re is the first note of the D major scale.
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) |
|---|---|---|---|
| D−1 | D͵͵͵ or ͵͵͵D or DDDD | Subsubcontra | 9.177 |
| D0 | D͵͵ or ͵͵D or DDD | Subcontra | 18.354 |
| D1 | D͵ or ͵D or DD | Contra | 36.708 |
| D2 | D | Great | 73.416 |
| D3 | d | Small | 146.832 |
| D4 | d′ | One-lined | 293.665 |
| D5 | d′′ | Two-lined | 587.33 |
| D6 | d′′′ | Three-lined | 1174.659 |
| D7 | d′′′′ | Four-lined | 2349.318 |
| D8 | d′′′′′ | Five-lined | 4698.636 |
| D9 | d′′′′′′ | Six-lined | 9397.273 |
| D10 | d′′′′′′′ | Seven-lined | 18794.545 |
