E Diminished Triad

Chord Tones: E Diminished Triad

Symbol: dim, ° — Formula: 1-♭3-♭5

DegreeNoteFrequency (A=440, Equal)
1 E 329.628 Hz
♭3 G 391.995 Hz
♭5 A# 466.164 Hz

Chord Notation

Notation TypeSymbol / Value
Lead Sheet SymbolEdim
All Common Symbolsdim, °
Interval Formula1-♭3-♭5
Harmonic Categorydissonant

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

InversionNotes (low to high)Bass NoteSlash Notation
Root Position E G A# E E Diminished Triad
First Inversion G A# E G E Diminished Triad/G
Second Inversion A# E G A# E Diminished Triad/A#

Harmonic Function

The E diminished chord commonly functions as the mediant (iii) in C major or dominant (V) in A major. Its harmonic role varies by key — in major keys it provides stable harmonic grounding.

The diminished triad features a flat third and flat fifth, creating a tense, unstable sound. It occurs naturally on the seventh degree of the major scale and resolves strongly to the tonic.

Common Progressions

The E Diminished Triad frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

Songs Featuring the Diminished Triad

Well-known songs where the E Diminished Triad — or this chord type — plays a prominent role:

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

NoteEqual Temp.PythagoreanJust Intonation
E 329.628 Hz 330.001 Hz 327.032 Hz
G 391.995 Hz 391.111 Hz 392.438 Hz
A# 466.164 Hz 463.538 Hz 470.926 Hz

Scales Containing the E Diminished Triad

These scales include the E Diminished Triad as a diatonic or characteristic chord: