E♭2 at every common reference pitch
A note’s frequency depends on what A4 is tuned to. The standard is 440 Hz; the other three are the ones you are most likely to meet. The cents column is how far each one sits from the 440 version — the same for every note, because changing the reference moves the whole scale together.
| Reference | E♭2 | vs 440 |
|---|---|---|
| A4 = 415 Hz · Baroque pitch | 73.36 Hz | −101.3¢ |
| A4 = 432 Hz · “Verdi” pitch | 76.37 Hz | −31.8¢ |
| A4 = 440 Hz · Standard (ISO 16) | 77.78 Hz | — |
| A4 = 442 Hz · Orchestral | 78.14 Hz | +7.9¢ |
One cycle of E♭2 lasts 12.856 ms, and its wavelength in air at 20 °C is 4.41 m. Hold it as a steady tone in the tone generator.
E♭2 on the piano
E♭2 is key 19 of 88, counting from the bottom — the black key between D and E. Press any key below to compare it with its neighbours.
E♭2 on the guitar
E♭2 is below the guitar’s lowest note, the open low E (E2), so a guitar in standard tuning cannot play it.
E♭2 on the staff
Instruments that can play E♭2
19 instruments play E♭2 within the normal range, and 1 reach it only at the extreme of theirs. Each links to its range chart; for a transposing instrument, the note on its part is shown.
Bowed strings
Guitars and basses
Keyboards and free reeds
Only at the extreme of their range
E♭2 is outside the typical range of all six voice types. Test your own range.
The harmonics of E♭2
A played E♭2 is not one frequency. A string or a pipe also sounds whole-number multiples of it, and the mix of those harmonics is the instrument’s tone. Here is where the first eight land — and why the 7th sounds out of tune against a piano.
| Harmonic | Frequency | Nearest note | Off by |
|---|---|---|---|
| 1 (fundamental) | 77.78 Hz | E♭2 | 0¢ |
| 2 | 155.56 Hz | E♭3 | 0¢ |
| 3 | 233.35 Hz | B♭3 | +2.0¢ |
| 4 | 311.13 Hz | E♭4 | 0¢ |
| 5 | 388.91 Hz | G4 | −13.7¢ |
| 6 | 466.69 Hz | B♭4 | +2.0¢ |
| 7 | 544.47 Hz | C♯5 | −31.2¢ |
| 8 | 622.25 Hz | E♭5 | 0¢ |
Frequently asked questions
What is the frequency of E♭2?
E♭2 is 77.78 Hz in equal temperament with A4 tuned to 440 Hz, the international standard. At A4 = 432 Hz it is 76.37 Hz, and at the orchestral A4 = 442 Hz it is 78.14 Hz.
Is E♭2 the same note as D♯2?
On a piano, a guitar or a tuner, yes: E♭2 and D♯2 are the same key and the same frequency, 77.78 Hz, in equal temperament. They are two names for one pitch (enharmonic equivalents). Which one is written depends on the key — sharps in sharp keys, flats in flat keys — and a string or wind player may pitch them a few cents apart when playing in just intonation.
How do I play E♭2 on a piano?
E♭2 is key 19 of 88, counting from the bottom — the black key between D and E.
Which instruments can play E♭2?
19 of the instruments we chart play E♭2 within their normal range, including cello, double bass, 7-string guitar, 8-string guitar, brazilian 7-string guitar, and 1 more reach it only at the extreme of their range.
Typing it? E♭2 is also written Eb2 or D#2. Convert any frequency on the Hz-to-note converter.