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A diminished scale
Fretboard diagram
A diminished scale — chords and intervals
The A diminished scale is the octatonic scale alternating whole and half steps. On guitar, its notes are A, B, C, D, Eb, F, F#, G#. It is the definitive sound of film noir, thrillers, and psychological horror, used to evoke a sense of dread, ambiguity, and mounting tension. The diatonic chords of A diminished are A diminished, B diminished, C diminished, D diminished, Eb diminished, F diminished, F# diminished, G# diminished.
The A diminished scale has the following degrees: 1 2 ♭3 4 ♭5 ♭6 6 7.
Intervals: W-H-W-H-W-H-W-H.
Diatonic chords: A diminished, B diminished, C diminished, D diminished, Eb diminished, F diminished, F# diminished, G# diminished.
Use the interactive harmonizer above to explore triads, seventh chords, and chord variations for composing with the A diminished scale on guitar.