E7 — 2637.02 Hz
E7 (MIDI 100) vibrates 2637.02 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
E7 at different reference pitches
| Reference (A4) | E7 frequency | Used for |
|---|---|---|
| 415 Hz | 2487.19 Hz | Baroque pitch |
| 432 Hz | 2589.07 Hz | “Verdi” pitch |
| 440 Hz | 2637.02 Hz | Standard concert pitch |
| 442 Hz | 2649.01 Hz | European orchestras |
| 444 Hz | 2660.99 Hz | European orchestras |
Physical properties
- Period: one cycle every 0.38 ms
- Wavelength in air: ≈ 13.0 cm (at 20 °C, 343 m/s)
- MIDI note number: 100
- Octave up: E7 = 5274.04 Hz · Octave down: 1318.51 Hz