G#1 — 51.91 Hz
G#1 (MIDI 32) vibrates 51.91 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
G#1 at different reference pitches
| Reference (A4) | G#1 frequency | Used for |
|---|---|---|
| 415 Hz | 48.96 Hz | Baroque pitch |
| 432 Hz | 50.97 Hz | “Verdi” pitch |
| 440 Hz | 51.91 Hz | Standard concert pitch |
| 442 Hz | 52.15 Hz | European orchestras |
| 444 Hz | 52.39 Hz | European orchestras |
Physical properties
- Period: one cycle every 19.26 ms
- Wavelength in air: ≈ 6.61 m (at 20 °C, 343 m/s)
- MIDI note number: 32
- Octave up: G#2 = 103.83 Hz · Octave down: 25.96 Hz