G1 — 49.00 Hz
G1 (MIDI 31) vibrates 49.00 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
G1 at different reference pitches
| Reference (A4) | G1 frequency | Used for |
|---|---|---|
| 415 Hz | 46.22 Hz | Baroque pitch |
| 432 Hz | 48.11 Hz | “Verdi” pitch |
| 440 Hz | 49.00 Hz | Standard concert pitch |
| 442 Hz | 49.22 Hz | European orchestras |
| 444 Hz | 49.44 Hz | European orchestras |
Physical properties
- Period: one cycle every 20.41 ms
- Wavelength in air: ≈ 7.00 m (at 20 °C, 343 m/s)
- MIDI note number: 31
- Octave up: G2 = 98.00 Hz · Octave down: 24.50 Hz