E (musical note)

E is the third note and the fifth semitone of the C major scale, and mi in fixed-do solfège. It has enharmonic equivalents of F♭ [(F-flat) which is by definition a diatonic semitone above E♭] and D (D-double sharp), amongst others.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of Middle E (E4) is approximately 329.628 Hz. See pitch (music) for a discussion of historical variations in frequency.

Common scales in the key of E.

 * E major: E F♯ G♯ A B C♯ D♯ E
 * E natural minor: E F♯ G A B C D E
 * E harmonic minor: E F♯ G A B C D♯ E
 * E melodic minor ascending: E F♯ G A B C♯ D♯ E
 * E melodic minor descending: E D C B A G F♯ E

E major modes (diatonic scales).

 * E Ionian: E F♯ G♯ A B C♯ D♯ E
 * E Dorian: E F♯ G A B C♯ D E
 * E Phrygian: E F G A B C D E
 * E Lydian: E F♯ G♯ A♯ B C♯ D♯ E
 * E Mixolydian: E F♯ G♯ A B C♯ D E
 * E Aeolian: E F♯ G A B C D E
 * E Locrian: E F G A B♭ C D E

E melodic (Jazz) minor modes

 * E ascending melodic minor: E F♯ G A B C♯ D♯ E
 * E Dorian ♭2: E F G A B C♯ D E
 * E Lydian augmented: E F♯ G♯ A♯ B♯ C♯ D♯ E
 * E Lydian dominant: E F♯ G♯ A♯ B C♯ D E
 * E Mixolydian ♭6: E F♯ G♯ A B C D E
 * E Locrian ♮2: E F♯ G A B♭ C D E
 * E altered: E F G A♭ B♭ C D E

E harmonic minor modes

 * E harmonic minor: E F♯ G A B C D♯ E
 * E Locrian ♮6: E F G A B♭ C♯ D E
 * E Ionian ♯5: E F♯ G♯ A B♯ C♯ D♯ E
 * E Dorian ♯4: E F♯ G A♯ B C♯ D E
 * E Phrygian ♮3: E F G♯ A B C D E
 * E Lydian ♯2: E F G♯ A♯ B C♯ D♯ E
 * E Superlocrian bb7: E F G A♭ B♭ C D♭ E

E harmonic major modes

 * E Harmonic Major: E F♯ G♯ A B C D♯ E
 * E Dorian ♭5: E F♯ G A B♭ C♯ D E
 * E Phrygian ♭4: E F G A♭ B C D E
 * E Lydian ♭3: E F♯ G A♯ B C♯ D♯ E
 * E Mixolydian ♭2: E F G♯ A B C♯ D E
 * E Lydian Augmented ♯2: E F G♯ A♯ B♯ C♯ D♯ E
 * E Locrian 7: E F G A B♭ C D♭ E

F-flat
F♭ is a common enharmonic equivalent of E, but is not regarded as the same note. F♭ is commonly found after E♭ in the same measure in pieces where E♭ is in the key signature, in order to represent a diatonic, rather than a chromatic semitone; writing an E♭ with a following E♮ is regarded as a chromatic alteration of one scale degree.