D3 — 146.83 Hz
D3 (MIDI 50) vibrates 146.83 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
D3 at different reference pitches
| Reference (A4) | D3 frequency | Used for |
|---|---|---|
| 415 Hz | 138.49 Hz | Baroque pitch |
| 432 Hz | 144.16 Hz | “Verdi” pitch |
| 440 Hz | 146.83 Hz | Standard concert pitch |
| 442 Hz | 147.50 Hz | European orchestras |
| 444 Hz | 148.17 Hz | European orchestras |
Physical properties
- Period: one cycle every 6.81 ms
- Wavelength in air: ≈ 2.34 m (at 20 °C, 343 m/s)
- MIDI note number: 50
- Octave up: D4 = 293.66 Hz · Octave down: 73.42 Hz
Strings tuned to D3
- Guitar — Standard (E A D G B E)
- Guitar — Drop D (D A D G B E)
- Guitar — Open D (D A D F# A D)
- Guitar — Open G (D G D G B D)
- Guitar — DADGAD
- Guitar — Drop A (A E A D F# B)
- Guitar — Double Drop D (D A D G B D)
- Guitar — All Fourths (E A D G C F)
- 7-String Guitar — Standard (B E A D G B E)
- 7-String Guitar — Drop A (A E A D G B E)
- 8-String Guitar — Standard (F# B E A D G B E)
- 8-String Guitar — Drop E (E B E A D G B E)
- 12-String Guitar — Standard (E A D G B E, octave courses)
- Ukulele — Baritone (D G B E)
- Cello — Standard (C G D A)
- Banjo — Open G (g D G B D)
- Irish Bouzouki — GDAD
- Irish Bouzouki — GDAE (Octave Mandolin)
- Cavaquinho — Standard (D G B D)
- Dobro / Resonator — Open G (G B D G B D)