E or mi is the third note of the solfège.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the E note is approximately 329.628 Hz. See pitch (music) for a discussion of historical variations in frequency.

[edit] Designation by octave

Scientific Designation	Helmholtz Designation	Octave Name	Frequency (Hz)
E-1	Eˌˌˌ	Subsubcontra	10.301
E0	Eˌˌ	Subcontra	20.602
E1	Eˌ	Contra	41.204
E2	E	Great	82.407
E3	e	Small	164.814
E4	e′	One-lined	329.628
E5	e″	Two-lined	659.255
E6	e′″	Three-lined	1318.51
E7	e″″	Four-lined	2637.021
E8	e′″″	Five-lined	5274.041
E9	e″″″	Six-lined	10548.082

[edit] References

v • d • e Notes of the Chromatic Scale B♯/C · C♯/D♭ · D · D♯/ E♭ · E/F♭ · E♯/F · F♯/G♭ · G · G♯/A♭ · A · A♯/B♭ · B/C♭

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