D6 — 1174.66 Hz
D6 (MIDI 86) vibrates 1174.66 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
D6 at different reference pitches
| Reference (A4) | D6 frequency | Used for |
|---|---|---|
| 415 Hz | 1107.92 Hz | Baroque pitch |
| 432 Hz | 1153.30 Hz | “Verdi” pitch |
| 440 Hz | 1174.66 Hz | Standard concert pitch |
| 442 Hz | 1180.00 Hz | European orchestras |
| 444 Hz | 1185.34 Hz | European orchestras |
Physical properties
- Period: one cycle every 0.85 ms
- Wavelength in air: ≈ 29.2 cm (at 20 °C, 343 m/s)
- MIDI note number: 86
- Octave up: D7 = 2349.32 Hz · Octave down: 587.33 Hz