E2 — 82.41 Hz
E2 (MIDI 40) vibrates 82.41 times per second at standard concert pitch. Play the reference tone below, or tune to it with the online tuner.
E2 at different reference pitches
| Reference (A4) | E2 frequency | Used for |
|---|---|---|
| 415 Hz | 77.72 Hz | Baroque pitch |
| 432 Hz | 80.91 Hz | “Verdi” pitch |
| 440 Hz | 82.41 Hz | Standard concert pitch |
| 442 Hz | 82.78 Hz | European orchestras |
| 444 Hz | 83.16 Hz | European orchestras |
Physical properties
- Period: one cycle every 12.13 ms
- Wavelength in air: ≈ 4.16 m (at 20 °C, 343 m/s)
- MIDI note number: 40
- Octave up: E3 = 164.81 Hz · Octave down: 41.20 Hz
Strings tuned to E2
- Guitar — Standard (E A D G B E)
- Guitar — Open A (E A E A C# E)
- Guitar — Drop A (A E A D F# B)
- Guitar — Open E (E B E G# B E)
- 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)
- Lap Steel Guitar — Open E (E B E G# B E)