Recognised as Musical note
E2
- E2
- 82.41 Hz
- MIDI 40
E2 is MIDI note 40, sounding at 82.407 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 4.1623 m, and it sits in octave 2.
Pitch
Scientific pitch notationE2
MIDI note number40
Pitch classE (4)
Octave2
As a sound wave
Wavelength in air4.1623 mat 343 m/s, dry air at 20 °C
Period12.1349 ms
Frequency one octave down41.203 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age
Intervals from here
Octave belowE1 · 41.2 Hz
Perfect fifth belowA1 · 55 Hz
Semitone belowD#2 · 77.78 Hz
Semitone aboveF2 · 87.31 Hz
Major third aboveG#2 · 103.83 Hz
Perfect fifth aboveB2 · 123.47 Hz
Octave aboveE3 · 164.81 Hz
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